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Similarity

Definitions of similarity

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Similar shapes & transformations
Practice
Similarity & transformationsGet 3 of 4 questions to level up!

Introduction to triangle similarity

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Intro to triangle similarityTriangle similarity postulates/criteriaDetermining similar trianglesProving slope is constant using similarityTriangle similarity review
Practice
Determine similar triangles: AAGet 3 of 4 questions to level up!
Determine similar triangles: SSSGet 3 of 4 questions to level up!

Solving similar triangles

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Solving similar trianglesSolving similar triangles: same side plays different roles
Practice
Solve similar triangles (basic)Get 3 of 4 questions to level up!
Solve similar triangles (advanced)Get 3 of 4 questions to level up!

Angle bisector theorem

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Intro to angle bisector theoremUsing the angle bisector theorem
Practice
Solve triangles: angle bisector theoremGet 3 of 4 questions to level up!

Solving problems with similar & congruent triangles

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Using similar & congruent trianglesChallenging similarity problem
Practice
Use similar & congruent trianglesGet 3 of 4 questions to level up!

Solving modeling problems with similar & congruent triangles

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Geometry word problem: the golden ratioGeometry word problem: Earth & Moon radiiGeometry word problem: a perfect pool shot

About this unit

Learn what it means for two figures to be similar, and how to determine whether two figures are similar or not. Use this concept to prove geometric theorems and solve some problems with polygons.