Learn how to find the scale factor with similar figures in this free math video tutorial by Mario's Math Tutoring.
0:13 Explaining How the Order is Important for the Scale Factor
0:26 Formula for Finding the Scale Factor
1:09 Explanation if the Scale Factor is an Enlargement or a Reduction
Related Videos:
Scale Factors Finding Length, Area, Volume in Similar Figures
https://youtu.be/03-G60uEeQs
Similar Solids Find Volume Given Surface Area
https://youtu.be/XInrsVZzgx4
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Mario's Math Tutoring

How to Calculate the Scale Factor of Two Shapes. Part of the series: Geometry Tips. You can calculate the scale factor of two shapes using a very specific method. Calculate the scale factor of two shapes with help from a longtime high school math tutor in this free video clip. Read more: http://www.ehow.com/video_12215095_calculate-scale-factor-two-shapes.html

Views: 121997
eHowEducation

This video defines scale factor and then uses proportions and equivalent ratios to determine missing values is similar shapes.
http://mathispower4u.com

Views: 3963
Mathispower4u

For a complete lesson on similar triangles, go to http://www.MathHelp.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students review the idea that the ratios of the lengths of corresponding sides of similar figures are equal. Students then use this idea to find missing segment lengths in similar figures.

Views: 466397
MathHelp.com

Part of the student-created tutorial project at Mathtrain.TV.
Mathtrain.TV is a free, educational "kids teaching kids" project from Mr. Marcos & his Students at Lincoln Middle School in Santa Monica, CA.

Views: 21469
mathtrain

Introduction to similar triangles
Watch the next lesson: https://www.khanacademy.org/math/geometry/similarity/old_school_similarity/v/similar-triangles-part-2?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry
Missed the previous lesson?
https://www.khanacademy.org/math/geometry/similarity/cc-solving-prob-similar-tri/v/challenging-similarity-problem?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.
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Views: 412094
Khan Academy

Discover more at www.ck12.org: http://www.ck12.org/geometry/Similar-Polygons-and-Scale-Factors/
Here you'll learn what properties two or more polygons must possess to be similar. You'll also learn what a scale factor is and how to solve for missing information in similar polygon problems.
This video provides the student with a walkthrough of one or more examples from the concept "Similar Polygons and Scale Factors".
This is part of CK-12’s Basic Geometry: Similarity. See more at:
1. Forms of Ratios:
http://www.ck12.org/geometry/Forms-of-Ratios/
2. Proportion Properties:
http://www.ck12.org/geometry/Proportion-Properties/
3. Similar Polygons and Scale Factors:
http://www.ck12.org/geometry/Similar-Polygons-and-Scale-Factors/
4. AA Similarity:
http://www.ck12.org/geometry/AA-Similarity/
5. Indirect Measurement:
http://www.ck12.org/geometry/Indirect-Measurement/
6. SSS Similarity:
http://www.ck12.org/geometry/SSS-Similarity/
7. SAS Similarity:
http://www.ck12.org/geometry/SAS-Similarity/
8. Triangle Proportionality:
http://www.ck12.org/geometry/Triangle-Proportionality/
9. Parallel Lines and Transversals:
http://www.ck12.org/geometry/Parallel-Lines-and-Transversals/
10. Proportions with Angle Bisectors:
http://www.ck12.org/geometry/Proportions-with-Angle-Bisectors/
11. Dilation:
http://www.ck12.org/geometry/Dilation/
12. Dilation in the Coordinate Plane:
http://www.ck12.org/geometry/Dilation-in-the-Coordinate-Plane/
13. Self-Similarity:
http://www.ck12.org/geometry/Self-Similarity/
Watch the whole series of CK-12's Basic Geometry videos: https://www.youtube.com/playlist?list=PLhWx3LZhlpseSm7selpF8lEq_jtiOqpDX

Views: 31039
CK-12 Foundation

This geometry video tutorial provides a basic introduction on similar triangles and similar figures. It explains how to find the missing side using the proportions of similar triangles and even similar trapezoids. It explains how to solve for x as it relates to missing sides and missing angles. It discusses how to calculate the enlargement ratio and how to use it to determine the perimeter area of another triangle. This tutorial contains plenty of examples and practice problems.
Geometry Playlist:
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Views: 3171
The Organic Chemistry Tutor

Learn about dilations. A dilation is the transformation of a shape by a scale factor to produce an image that is similar to the original shape, but is different in size to the original shape. A dilation that creates a larger image is called an enlargement or a stretch while a dilation that creates a smaller image is called a reduction or a shrink. The measures of the sides of the original shape and the corresponding sides of the image are proportional. And the distance of the parts of the original shape from the origin are proportional to the distance of the corresponding parts of the image.

Views: 326
Brian McLogan

This video focuses on how to focus on the missing side of a similar triangle. In particular, I teach students how to separate two similar triangles and correctly set up a proportion to solve for one of the missing sides.
Your feedback and requests are encouraged and appreciated. Thank you all for watching and please subscribe if you like!

Views: 35926
vinteachesmath

Learn how to solve for the unknown in a triangle divided internally such that the division is parallel to one of the sides of the triangle. The triangle proportionality theorem states that if a line is parallel to one side of a triangle and it intersects the other two sides, then it divides those sides proportionally. Thus, with the aid of the triangle propotionality theorem, we can solve for the unknown in a triangle divided proportionally.
#geometry #similartriangles

Views: 36581
Brian McLogan

Great study tool to help you with finding missing sides on similar shapes using proportions. Key vocabulary words covered include: ratio, proportion, similar, scale factor, corresponding! Check it out now!

Views: 31582
whitchermath

How do similar triangles work? Watch this video to find out how to use proportions to solve for similar triangles.

Views: 175431
dek2635

This math video tutorial discusses similar triangles and how to use proportions to find the missing side and solve for x. This video contains plenty of examples and practice problems.
Pre-Algebra Video Playlist:
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Access to Premium Videos:
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Views: 14288
The Organic Chemistry Tutor

Learn about dilations. A dilation is the transformation of a shape by a scale factor to produce an image that is similar to the original shape, but is different in size to the original shape. A dilation that creates a larger image is called an enlargement or a stretch while a dilation that creates a smaller image is called a reduction or a shrink. The measures of the sides of the original shape and the corresponding sides of the image are proportional. And the distance of the parts of the original shape from the origin are proportional to the distance of the corresponding parts of the image.

Views: 907
Brian McLogan

Views: 7137
rebecca hayes

Enlargement. How to enlarge shapes with a positive scale factor from a given centre of enlargement using construction lines. How to find the centre of enlargement.
Geogebra is used to demonstrate dynamic transformations of various objects and scale factors.
Subscribe to Maths Doctor for regular logic puzzles, math riddles and brain teasers: https://www.youtube.com/channel/UCI_vLyzRi06rIikgw-ATM5Q.
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Views: 40743
Maths Doctor

GCSE Maths revision tutorial video.
For the full list of videos and more revision resources visit www.mathsgenie.co.uk.

Views: 64739
Maths Genie

GCSE mathematic revision help. An example on how to enlarge a shape by a positive and negative scale factor for GCSE revision.
Our full range of GCSE videos - http://www.mathslearn.co.uk/gcsemaths.html
A scale factor of 2 and -2 is chosen. This is one of the key GCSE transformations and will help secure a grade C and above in your GCSE examination View my channel: http://www.youtube.com/jayates79

Views: 253473
Maths Videos - by jayates

Join us on this flipped math lesson where we visually explore how to dilate geometric figures based on a given scale factor. For more MashUp Math content, visit http://www.mashupmath.com and join our free mailing list! :)
Download the free PDF lesson guide here: http://bit.ly/2lxaDJG
This lesson answers the questions: How do I dilate a figure? What is a scale factor? What is a dilation? What is the difference between a dilation and a translation?
Our lessons are perfect for flipped classroom math teachers and students. This lesson is aligned with the common core learning standards for math and the SAT math curriculum as well.
Be sure to join our mailing list at http://www.mashupmath.com

Views: 138710
MashUp Math

Find the scale factor that was used to dilate a triangle.

Views: 4399
Marc Parsons

Use the formula you learned in the previous video to do a few practice problems. Includes a triangle and working backwards when starting with a copy and finding the area of the original.

Views: 136
whitchermath

Similar figures. Scale factor and constant ratio between figures.

Views: 2136
Jessie Mason

Corbettmaths - This video shows how to find the centre of enlargement for both positive and negative scale factors

Views: 106680
corbettmaths

This video screencast was created with Doceri on an iPad. Doceri is free in the iTunes app store. Learn more at http://www.doceri.com

Views: 893
David Jensen

Mr Jeffery going through the idea of enlarging a shape from a centre of enlargement.

Views: 41580
MrJefferyMaths

u07_l1_t3_we4 Missing Measurements for Similar Triangles

Views: 54237
Khan Academy

If two triangles are mathematically similar, then all of the sides have been enlarged by the same scale factor. First you will have to calculate the scale factor of the enlargement by dividing two matching sides. Once you have calculated this scale factor, you can then multiply and divide by it to work out the other side lengths that are missing in the two triangles.

Views: 3291
maths3000

An explanation of a dilation as a transformation that maps (x,y) to (kx, ky) where k is greater than 0, has a center at (0,0), and scale factor k. How similarity ratios are scale factors, drawing and describing dilations, how the pre-image and image of dilations are similar, similarity transformations, and finally determining whether polygons are similar.
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JoAnn's School

For a complete lesson on similar triangle proofs, go to http://www.MathHelp.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar (Angle-Angle Similarity Postulate, or AA Similarity Postulate). Students also learn that the scale factor is ratio of the lengths of two corresponding sides. Students are then asked to use these concepts to determine whether given triangles are similar, and to find the missing side lengths in similar triangles.

Views: 147997
MathHelp.com

This video focuses on how to find the area of similar triangles. In this video, we are given the length of one pair of corresponding sides in two similar triangles. Also, we know the area of one triangle. With this information, we need to find the area of the other triangle.
To solve this problem, we use the theorem that states that if two triangles are similar, then the ratio of their areas is the square of the ratio of their sides.
Your feedback and requests are encouraged and appreciated. Thank you for watching and please subscribe if you like!

Views: 20759
vinteachesmath

calculating the scale factor using the copy/original. Using the scale factor to calculate unknown sides of similar triangles

Views: 79
Australian Mathematics Curriculum Videos

Students learn how to determine the scale factor of similar figures. Students learn the similarity tests for triangles and how to apply them to proof.

Views: 1201
TheMrAyre

Views: 562
Lexi Grow

The Hindi video talks about similarity between triangle and scale factor K.
About us: We are a social enterprise working on a mission to make school learning interesting, relevant and affordable to every child on this planet.
You can watch our FREE online videos at http://www.bodhaguru.com/watch and download our practice application/games - just visit http://www.bodhaguru.com/play
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Bodhaguru

Let's explore the difference between similar and congruent figures (similarity vs. congruence) in this conceptual mini-lesson.
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Learning Standards (8th Grade Geometry):
Understand congruence and similarity using physical models, transparencies, or geometry software.
8.G.A.4
Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.
What does it mean when two figures are similar?
What does it mean when two figures are congruent?
What is the difference between similarity and conrguence?
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Our lessons are perfect for flipped classroom math teachers and students. This lesson is aligned with the common core learning standards for math and the SAT math curriculum as well.
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Our Mission: MashUp Math is our creative solution to reviving students' passion and interest for learning mathematics. As young educators, we know that all students learn math differently and that a one-size-fits-all approach is simply ineffective. The idea that the ability to understand mathematics is reserved for a select few did not sit well with us.
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MashUp Math