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Similarity (geometry)

en.wikipedia.org/wiki/Similarity_(geometry)

Two geometrical objects are called similar if they both have the same shape, or one has the ... Due to this theorem, several authors simplify the definition of similar triangles to only require that...

Similar Triangles - Math is Fun

www.mathsisfun.com/geometry/triangles-similar.html

Two triangles are Similar if the only difference is size (and possibly the need to turn or flip one around). These triangles are all similar: (Equal angles have been  ...

Similar Triangles - Math Open Reference

www.mathopenref.com/similartriangles.html

Definition and properties of similar triangles - testing for similarity.

Similar Triangles - RegentsPrep

www.regentsprep.org/regents/math/geometry/gp11/Lsimilar.htm

Similar Triangles. ... Objects, such as these two cats, that have the same shape, but do not necessarily have the same size, are said to be "similar".

www.ask.com/youtube?q=Similar Triangles&v=gQoNjgayoLI
Sep 27, 2011 ... How do similar triangles work? Watch this video to find out how to use proportions to solve for similar triangles.

BBC - GCSE Bitesize: Similar triangles

www.bbc.co.uk/schools/gcsebitesize/maths/geometry/congruencysimilarityrev2.shtml

A secondary school revision resource for GCSE Maths about foundation level congruent and similar shapes.

IXL - Similar triangles and indirect measurement (Algebra 1 practice)

www.ixl.com/math/algebra-1/similar-triangles-and-indirect-measurement

Fun math practice! Improve your skills with free problems in 'Similar triangles and indirect measurement' and thousands of other practice lessons.

G-SRT Similar triangles - Illustrative Mathematics

www.illustrativemathematics.org/content-standards/tasks/1422

This task works toward establishing the AA criterion for similarity of triangles by providing a detailed sequence of transformations that moves one of the given ...

Ratios and Proportions - Similar figures - In Depth - Math.com

www.math.com/school/subject1/lessons/S1U2L4DP.html

When two figures are similar, the ratios of the lengths of their corresponding sides are equal. To determine if the triangles shown are similar, compare their ...

Similar Triangles-resources,video es, links and more

www.mathwarehouse.com/geometry/similar/triangles/

Everything you want to know similar triangles-theorems, angle bisector theorem, side splitter, simlarity ratio and more.

More Info

Intro to triangle similarity | Triangle similarity | Khan Academy

www.khanacademy.org

Sal explains what it means for triangles to be similar, and how this follows from the definition of similarity.

Similar Triangles - RegentsPrep

www.regentsprep.org

Triangles are similar if their corresponding (matching) angles are congruent ( equal in measure) and the ratio of their corresponding sides are in proportion.

Proofs with Similar Triangles - RegentsPrep

www.regentsprep.org

Two triangles are similar if and only if the corresponding sides are in proportion and the corresponding angles are congruent.