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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 Open Reference

www.mathopenref.com/similartriangles.html

Definition and properties of similar triangles - testing for similarity.

Intro to triangle similarity | Triangle similarity | Khan Academy

www.khanacademy.org/math/algebra-basics/core-algebra-geometry/copy-of-triangle_similarlity/v/similar-triangle-basics

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

Proofs with Similar Triangles - Regents Exam Prep Center

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

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

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.

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.

Similar Triangles - GCSE Guide

www.gcseguide.co.uk/similar_triangles.htm

Similar Triangles If two shapes are similar, one is an enlargement of the other. This means that the two shapes will have the same angles and their sides will be  ...

Three Similar Triangles

www.cut-the-knot.org/Curriculum/Geometry/SimilarTriangles.shtml

Jun 1, 2015 ... This is what the applet purports to show. Take any two similar triangles ABC and A'B'C' whose vertices are traversed in the same direction, ...

Similar Triangles - MathWareHouse

www.mathwarehouse.com/geometry/similar/triangles/sides-and-angles-of-similar-triangles.php

Similar triangles -- their angles, their sides and their ratios explained with pictures , examples and several practice problems.

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Similar Triangles - Math is Fun

www.mathsisfun.com

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 - Regents Exam Prep Center

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.

Similar Triangles - Regents Exam Prep Center

www.regentsprep.org

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".