There are three special names given to triangles that tell how many sides (or angles) are equal.
http://www.mathsisfun.com/triangle.html

Views: 107681
Mathematics is Fun

Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute, right and obtuse triangles. The classification of triangles on the bases of its side lengths are: scalene, isosceles and equilateral triangles.
#geometry #triangles

Views: 7197
Brian McLogan

Learn how to classify triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute, right and obtuse triangles. The classification of triangles on the bases of its side lengths are: scalene, isosceles and equilateral triangles.
#geometry #triangles

Views: 3916
Brian McLogan

Learn More at mathantics.com
Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

Views: 1083165
mathantics

How to classify scalene, isosceles, and equilateral triangles by angles and side lengths

Views: 256
larryschmidt

Learn about congruent sides and angles of triangles, their differences and likenesses. Learn how to identify them, what the little marks and arcs on them stand for, even what the word triangle actually means. #11.2

Views: 13980
JoAnn's School

Learn how to find the missing side of a triangle. A triangle is a polygon with three sides. Triangles are classified on the basis of the angles or on the basis of the sides. The classification of a triangle on the basis of the sides are: scalene, isosceles, and equilateral triangles.
A scalene triangle is a triangle with none of the sides equal. An isosceles triangle is a triangle with two of the sides equal while an equilateral triangle is a triangle with the three sides equal.
When given expressions representing the sides of a triangle with the type of the triangle also given, we can use the properties of the various types of triangles to evaluate the given expressions and hence find the measure of the sides of the triangle.
#geometry #triangles

Views: 12434
Brian McLogan

🍎 Enjoy our growing library of math videos at https://www.numberock.com 🍎
Classifying Triangles Lesson Plan and Materials Below:
VIDEO'S LESSON PLAN ▶ https://www.teacherspayteachers.com/Product/Types-of-Triangles-HD-Music-Video-Anchor-Chart-Acute-Equilateral-and-Isosceles-Worksheets-Word-Problems--2264666
NUMBEROCK DIGITAL LIBRARY: https://www.teacherspayteachers.com/Product/Printables-Worksheets-for-Cool-Math-Video-Lessons-Shapes-Song-2D-2200780
»»-------------¤-------------««»»-------------¤-------------««
Types of Triangles Video Summary
Skateboards, mountain climbing, billiards… Don't you just love this stuff? That's why NUMBEROCK put it all into this song about triangles that is filled with real-world connections. Triangles are all around us, so it is easy to make this song especially relevant to the lives of students. Learn how to classify triangles by their sides (scalene, isosceles, & equilateral) and by the angles (acute, obtuse, & right) in this ridiculously catchy rock song.
»»-------------¤-------------««»»-------------¤-------------««
LYRICS:
Isosceles triangles have two equal sides
like this mountain we’re about to climb;
and since one angle’s over ninety degrees,
an obtuse triangle is what we see.
If you add up every angle,
there are one hundred eighty degrees in a triangle.
If the length is equal on every side,
we say it’s equilateral, like this road sign;
and since every angle’s less than 90 degrees,
an acute triangle it will also be.
If skateboard ramps are your scene,
with three different sides they’re called scalene.
That triangle would also be called right
if a ninety degree angle is inside.
There are two ways to classify triangles:
by their sides and their angles,
like sails out on the high seas
can be right or isosceles.
Or look at the foot of this goose;
it’s scalene and obtuse.
When you break pool balls with a cue,
they’re equilateral and acute.
This video addresses the following standards:
4.G (Draw and identify lines and angles, and classify shapes by properties of their lines and angles.)
5.G (Classify two-dimensional figures into categories based on their properties.)

Views: 387413
Math Songs by NUMBEROCK

Learn how to find the missing side of a triangle. A triangle is a polygon with three sides. Triangles are classified on the basis of the angles or on the basis of the sides. The classification of a triangle on the basis of the sides are: scalene, isosceles, and equilateral triangles.
A scalene triangle is a triangle with none of the sides equal. An isosceles triangle is a triangle with two of the sides equal while an equilateral triangle is a triangle with the three sides equal.
When given expressions representing the sides of a triangle with the type of the triangle also given, we can use the properties of the various types of triangles to evaluate the given expressions and hence find the measure of the sides of the triangle.
#geometry #triangles

Views: 22306
Brian McLogan

http://tapintoteenminds.com Find the missing angles in isosceles triangles using geometric properties such as the sum of the interior angles of a triangle and isosceles triangles have two equal length sides and two equal angles.

Views: 52347
Kyle Pearce

Learn how to classify triangles by rocking out to a version of Lorde's "Royals."
Made in Garagband (all instrumentation/arrangement done by Dylan Peters)
Triangle Images: http://etc.usf.edu

Views: 190996
Dylan Peters EDU

▶ SUBSCRIBE HAPPY LEARNING! http://bit.ly/HappyLearningTV
Educational Videos and songs for Kids. Today we’re going to learn about triangles. Triangles are polygons with three sides... See?.. One, two, three... But ... There are different kinds of triangles, and we classify them by the length of their sides. Using this classification, we get three types of triangles: isosceles, equilateral and scalene.
In Equilateral triangles, all the sides are the same length... Can you see how it is formed? Good! So this triangle is equilateral because its three sides are exactly the same.
In an isosceles triangle, two sides are the same length... and one is different.... See how it’s formed?.. Great, so - this is an isosceles triangle, with two equal sides and one different one.
And finally, let’s look at a scalene triangle: all three sides are a different length. See?.. Easy eh?.. A scalene triangle is the one with three different length sides; none of its sides are equal.
▶SUBSCRIBE TO HAPPY LEARNING! http://bit.ly/HappyLearningTV
"Educational Videos and songs for Kids"
Maybe if they didn’t have such strange names, it’d be easier to remember them... So let’s look again, just so we don’t forget.
All triangles have three sides, and depending on the length of their sides, they can be classified like this:
an equilateral triangle... all three sides are equal in length;
an isosceles triangle... two sides are the same length and one is different; and
a scalene triangle... all three sides are different in length.
Easy, right?
So, goodbye for now, everyone, and don’t forget to subscribe to Happy Learning!

Views: 228842
Happy Learning English

This math video provides an introduction into triangles. It explains the classification of triangles based on their angle measure and the number of congruent sides. Examples include equilateral triangles, scalene triangles, isosceles, right, acute, and obtuse triangles. This video also contains practice problems on solving the angle measure of triangles.
Pre-Algebra Video Playlist:
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Algebra Online Course:
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The Organic Chemistry Tutor

Learn how to find the missing side of a triangle. A triangle is a polygon with three sides. Triangles are classified on the basis of the angles or on the basis of the sides. The classification of a triangle on the basis of the sides are: scalene, isosceles, and equilateral triangles.
A scalene triangle is a triangle with none of the sides equal. An isosceles triangle is a triangle with two of the sides equal while an equilateral triangle is a triangle with the three sides equal.
When given expressions representing the sides of a triangle with the type of the triangle also given, we can use the properties of the various types of triangles to evaluate the given expressions and hence find the measure of the sides of the triangle.
#geometry #triangles

Views: 9329
Brian McLogan

Mr. Marty explains how to sort triangle by their side lengths.

Views: 4596
mrmartywbl

This lesson is over isosceles and equilateral triangles. You learn about the different parts of an isosceles triangle: base angles, vertex angle, legs, and base. You also learn more about equilateral and equiangular triangles. I also solve a few problems related to both types of triangles.

Views: 13491
TheDouceHouse

Views: 23469
Brian McLogan

Views: 367
Brian McLogan

Code :
import java.util.*;
public class Triangle
{
public static void main(String args[])
{
Scanner sc = new Scanner(System.in);
int s1 = 0, s2 = 0, s3 = 0;
System.out.print("Enter the sides of a triangle :");
s1 = sc.nextInt();
s2 = sc.nextInt();
s3 = sc.nextInt();
if(s1 == s2 && s2 == s3)
{
System.out.println("The triangle is Equilateral.");
}
else if(s1 != s2 && s2 != s3 && s1 != s3)
{
System.out.println("The triangle is Scalene.");
}
else
{
System.out.println("The triangle is Isosceles.");
}
}
}
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For any query, plz comment in the comment section below..
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Views: 1096
Computer Analyst

Finding the lenghts of sides in isoceles and equilateral triangles.

Views: 1897
Mr. Dan Muscarella

We introduce the connection between geometric figures and abstract algebra by showing how you can associate a group with triangles. The more symmetric the triangle, the larger the group. We illustrate this by finding the group of symmetries for equilateral, isosceles and scalene triangles.
If you’d like to help us make videos more quickly, you can support us on Patreon at
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We recommend the following textbooks:
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Milne, Algebra Course Notes (available free online)
http://www.jmilne.org/math/CourseNotes/index.html
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Teaching Assistant: Liliana de Castro
Written & Directed by Michael Harrison
Produced by Kimberly Hatch Harrison

Views: 57443
Socratica

Three example problems involving isosceles and equilateral triangles. 2 from Art of Problem Solving (by Richard Rusczyk) book
Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/geometry/congruent-triangles/isoscleles_equil/e/recognizing-triangles?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry
Watch the next lesson: https://www.khanacademy.org/math/geometry/congruent-triangles/isoscleles_equil/v/another-isosceles-example-problem?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry
Missed the previous lesson?
https://www.khanacademy.org/math/geometry/congruent-triangles/isoscleles_equil/v/equilateral-triangle-sides-and-angles-congruent?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry
Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry.
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to Khan Academy’s Geometry channel:
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Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy

Views: 223434
Khan Academy

For a complete lesson on the isosceles triangle theorem, go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn that an isosceles triangle is composed of a base, two congruent legs, two congruent base angles, and a vertex angle. Students also learn the isosceles triangle theorem, which states that if two sides of a triangle are congruent, then the angles opposite those sides are congruent; and the converse of the isosceles triangle theorem, which states that if two angles of a triangle are congruent, then the sides opposite those angles are congruent. Students are then asked to solve problems related to these theorems using Algebra.

Views: 235857
MathHelp.com

Art of Problem Solving's Richard Rusczyk explores isosceles and equilateral triangles.
Love math? Learn more: http://bit.ly/ArtofProblemSolving

Views: 54415
Art of Problem Solving

A great lesson on 'Triangles' for Grade 3. Kids can learn about equilateral, isosceles and scalene triangle, and hence expand their geometrical skills.

Views: 30313
Turtlediary

Views: 1018
Brian McLogan

Scalene, isosceles, equilateral, acute, right, obtuse. All are types of triangles but what makes them special depends on the method of categorization. Watch this outstanding explanation.
Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-geometry-topic/cc-4th-classifying-triangles/e/recognizing-triangles?utm_source=YT&utm_medium=Desc&utm_campaign=4thgrade
Watch the next lesson: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-geometry-topic/cc-4th-classifying-triangles/v/scalene-isosceles-equilateral-from-angle?utm_source=YT&utm_medium=Desc&utm_campaign=4thgrade
Missed the previous lesson? https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-geometry-topic/cc-4th-classifying-quadrilaterals/v/quadrilateral-types-exercise?utm_source=YT&utm_medium=Desc&utm_campaign=4thgrade
Grade 4th on Khan Academy: 4th grade is the time to start really fine-tuning your arithmetic skills. Not only will you be a multi-digit addition and subtraction rockstar, but you'll extend the multiplication and division that you started in 3rd grade to several digits. You'll also discover that you sometimes have something left over (called a "remainder") when you divide. In 3rd grade you learned what a fraction is. Now you'll start adding, subtracting, multiplying, and comparing them. You'll also see how they relate to decimals. On other fronts, you'll learn how to convert between different units (which is super important when comparing the size and speed of robot unicorns in different countries) and continue your journey thinking about various shapes in two dimensions. Some of the foundational concepts of geometry (like lines, rays and angles) also get introduced. As always, we'll round this out with a healthy dose of applied word problems and explorations of number patterns and properties (including the ideas of factors, multiples and prime numbers). The fun must not stop! (Content was selected for this grade level based on a typical curriculum in the United States.)
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to Khan AcademyÂÃÂªs 4th grade channel:
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Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy

Views: 755708
Khan Academy

Views: 1071
Brian McLogan

This video lesson is based on material released
under Creative Commons Attribution—License,
by the Wolfram Alpha Demonstrations Project.
I use these demonstrations for the pupils I
teach in my dayjob. I decided to make some
videos to make the demonstrations more
accessible and useful for my pupils.

Views: 387
Evan Millner

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So long as you know one angle, you can find the two missing angles in an isosceles triangle by following a few basic steps. Find the two missing angles in an isosceles triangle with help from a high school math tutor in this free video clip.
Expert: Charlie Kasov
Filmmaker: Victor Varnado
Series Description: A general understanding of mathematics will continue to serve you all throughout your daily life, long after you've left the classroom behind. Get tips on how to solve various types of math problems both in the classroom and out with help from a high school math tutor in this free video series.

Views: 39059
eHowEducation

How to find side lengths and angle measures in isosceles and equilateral triangles

Views: 224
larryschmidt

Geometry Teachers Never Spend Time Trying to Find Materials for Your Lessons Again!
Join Our Geometry Teacher Community Today!
http://geometrycoach.com/Geometry-Lesson-Plans/?pa=MOOMOOMATH
http://www.moomoomath.com/Definition-of-Scalene-Triangle.html
What is a scalene triangle?
Transcript
Scalene Triangles
Welcome to MooMooMath. Today we are talking about Scalene Triangles. A scalene triangle is one in which all three angles are different. So let's look at two examples. I'm going to mark these triangles 3 inches, 4 inches, and 5 inches. All three sides are different lengths. This triangle over here is marked such that all three sides are the same. The mark on the side represents equal lengths. This is actually an equilateral triangle. Now let's look at a scalene triangle based on angles. You have a forty five degree angle, a forty five degree angle, and a ninety degree angle, and over here you have a 60 degree angle, a 30 degree angle, and a ninety degree angle. So based on angles which of these is a scalene angle? This one here (circles the triangle with 60, 30, 90 degree angles) because all three angles are different or all three sides are different. The other triangle these two angles are the same meaning these two legs are the same so this one is actually what they call an isosceles triangle. So let's look at the rules. The definition is all sides are different lengths and all angles are different measures. So our 3, 4, 5, is our example. Hope this video was helpful.
For a summary of the video and a practice link go to http://moomoomath.com
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Views: 18276
MooMoo Math and Science

A quick introduction to triangles. Triangles can be described by the lengths of their sides (equilateral, isosceles, and scalene) or by the sizes of their angles (acute angles, right angles, and obtuse angles).
Narrated by Cissy Jones
Written by Michael Harrison
Directed & Produced by Kimberly Hatch Harrison & Michael Harrison
Edited by Izabela Melamed

Views: 6705
Socratica

Leave a tip for good service: https://paypal.me/jjthetutor
Identify the triangle PQR as isosceles, equilateral, a scalene, or a right triangle. Use the distance formula.
Student Solution Manuals: https://amzn.to/2WZrFnD
More help via http://jjthetutor.com
Download my eBooks via http://payhip.com/jjthetutor,
paperback via http://amazon.com/author/jjthetutor.

Views: 134
JJtheTutor

Lesson Notes on Isosceles and Equilateral Triangles

Views: 1906
davidsonchs

Scalene triangles are triangels with no congruent sides. Learn how to teach your child to identify scalene triangles. Find more videos and resources that go directly with this video and others @ www.mylearningblock.com

Views: 264
My LearningBlock

Isosceles triangles are triangles that have two congruent angles and two congruent sides. Learn how to teach your child to identify isosceles triangles. Find more videos and resources that go directly with this video and others @ www.mylearningblock.com

Views: 304
My LearningBlock

We classify a bunch of triangles as either acute, right, or obtuse (classification by angles), and as either scalene, isosceles, or equilateral (classification by sides).
Then we tackle two drawing problems that concern triangles. Drawing is at the heart of what geometry is all about and it is both a hands-on activity, which students like, and also requires geometric reasoning about the attributes.
This lesson is meant for 5th grade and onward.
Check out also my free books and worksheets at http://www.mathmammoth.com/free

Views: 3057
Math Mammoth

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So long as you know the other two sides in a triangle, you can determine the length of the third side quite easily. Learn how to determine the length of the third side of a triangle with help from a high school mathematics tutor in this free video clip.
Expert: Charlie Kasov
Filmmaker: Victor Varnado
Series Description: Whether you're trying to convert one unit of measurement to another or are trying to measure an object like an irregular triangle, a few fundamental principles of mathematics can help make the whole job easier. Learn how to complete various mathematical tasks with help from a high school mathematics tutor in this free video series.

Views: 122431
eHowEducation

In this Geometry lesson you will learn about Isosceles and Equilateral Triangles. You will also see the Converse of the Isosceles Triangle Theorem, Equiangular Triangles, Corollaries about Equilateral Triangles and some examples of how to solve for a given variable.

Views: 3748
Math is FUNdamental

Learn the essential definitions of triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute, right and obtuse triangles. The classification of triangles on the bases of its side lengths are: scalene, isosceles and equilateral triangles.
An acute triangle is a triangle with the three angles less than 90 degrees. A right triangle is a triangle with one of the angles equal to 90 degrees while an obtuse triangle is a triangle with one of the angles greater than 90 degrees.
A scalene triangle is a triangle in which none of the sides is equal to another side. An isosceles triangle is a triangle in which two of the sides are equal to each other while an equilateral triangle is a triangle in which all the three sides are equal to each other. A perpendicular bisector is a line which divides a segment into two equal parts.
#geometry #triangles

Views: 1319
Brian McLogan

I introduce 2 theorems about the properties of Isosceles and Equilateral Triangles. These theorems discuss how the base angles are congruent and that the bisector of the vertex is also a perpendicular bisector of the base. This video includes 2 proofs and 2 algebraic examples. EXAMPLES AT 0:05 9:06 15:37 22:45 Find free review test, useful notes and more at http://www.mathplane.com

Views: 4773
ProfRobBob

Learn the essential definitions of triangles. A triangle is a polygon with three sides. Triangles are classified on the basis of its angles or on the basis of its side lengths. The classification of triangles on the bases of its angles are: acute, right and obtuse triangles. The classification of triangles on the bases of its side lengths are: scalene, isosceles and equilateral triangles.
An acute triangle is a triangle with the three angles less than 90 degrees. A right triangle is a triangle with one of the angles equal to 90 degrees while an obtuse triangle is a triangle with one of the angles greater than 90 degrees.
A scalene triangle is a triangle in which none of the sides is equal to another side. An isosceles triangle is a triangle in which two of the sides are equal to each other while an equilateral triangle is a triangle in which all the three sides are equal to each other. A perpendicular bisector is a line which divides a segment into two equal parts.
#geometry #triangles

Views: 9082
Brian McLogan

Complete videos list: http://mathispower4u.yolasite.com/
This video will show example problems of how to use the properties of isosceles triangles to solve for unknown values.

Views: 11187
Mathispower4u

Recorded with ScreenCastify (https://www.screencastify.com), the screen video recorder for Chrome

Views: 126
Jeffrey Jelus

Using the pythagorean theorem to find the height of an equilateral triangle

Views: 35546
shaunteaches

Views: 4612
Brian McLogan