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Similarity (geometry) - Wikipedia

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

Two geometrical objects are called similar if they both have the same shape, or one has the ... Similar triangles[edit]. In geometry two triangles, △ABC and ...

Similar Triangles - Math is Fun

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

Similar Triangles. 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: triangles ...

Similar Triangles - Math Open Reference

www.mathopenref.com/similartriangles.html

Definition and properties of similar triangles - testing for similarity.

Intro to triangle similarity (video) | Khan Academy

www.khanacademy.org/math/geometry/hs-geo-similarity/hs-geo-triangle-similarity-intro/v/similar-triangle-basics

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

Solve similar triangles (basic) (practice) | Khan Academy

www.khanacademy.org/math/geometry/hs-geo-similarity/hs-geo-solving-similar-triangles/e/solving_similar_triangles_1

Given two similar triangles and some of their side lengths, find a missing side length.

Solve similar triangles (advanced) (practice) | Khan Academy

www.khanacademy.org/math/geometry/hs-geo-similarity/hs-geo-solving-similar-triangles/e/solving_similar_triangles_2

Given two similar triangles and some of their side lengths, find a missing side length.

Solving similar triangles (video) | Khan Academy

www.khanacademy.org/math/geometry/hs-geo-similarity/hs-geo-solving-similar-triangles/v/similarity-example-problems

Sal solves two problems where a missing side length is found by proving that triangles are similar and using this to find the measure.

Determine similar triangles: AA (practice) | Khan Academy

www.khanacademy.org/math/geometry/hs-geo-similarity/hs-geo-triangle-similarity-intro/e/similar_triangles_1

Given two triangles with some of their angle measures, determine whether the triangles are similar or not.

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 - Kuta Software

cdn.kutasoftware.com/Worksheets/Geo/7-Similar Triangles.pdf

Similar Triangles. State if the triangles in each pair are similar. If so, state how you know they are similar and complete the similarity statement. 1). 16. 16. D. E.