Module 2: Similarity, proof, and trigonometry

Topic A: Scale drawings

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Topic A: No content yet

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Topic B: Dilations

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Performing dilations

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Dilating shapes: expanding

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Dilating shapes: shrinking

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Lessons 10-11: No content yet

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Practice

Dilate pointsGet 3 of 4 questions to level up!

Dilations: scale factorGet 3 of 4 questions to level up!

Dilations: centerGet 3 of 4 questions to level up!

Dilate trianglesGet 3 of 4 questions to level up!

Dilations and propertiesGet 3 of 4 questions to level up!

Topic C: Lessons 12-14: Similarity intro

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Similar shapes & transformations

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Proof: all circles are similar

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Similarity & transformationsGet 3 of 4 questions to level up!

Sequences of transformationsGet 3 of 4 questions to level up!

Topic C: Lessons 15-17: Triangle similarity

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Intro to triangle similarity

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Triangle similarity postulates/criteria

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Determining similar triangles

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Solving similar triangles

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Solving similar triangles: same side plays different roles

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Practice

Determine similar triangles: AAGet 3 of 4 questions to level up!

Determine similar triangles: SSSGet 3 of 4 questions to level up!

Solve similar triangles (basic)Get 3 of 4 questions to level up!

Solve similar triangles (advanced)Get 3 of 4 questions to level up!

Topic C: Lessons 18-20: Similarity applications

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Intro to angle bisector theorem

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Using the angle bisector theorem

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Using similar & congruent triangles

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Challenging similarity problem

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Geometry word problem: the golden ratio

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Geometry word problem: Earth & Moon radii

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Geometry word problem: a perfect pool shot

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Practice

Solve triangles: angle bisector theoremGet 3 of 4 questions to level up!

Use similar & congruent trianglesGet 3 of 4 questions to level up!

Topic D: Applying similarity to right triangles

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Lesson 21: No content yet

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Simplifying square roots

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Simplifying square roots (variables)

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Simplifying square-root expressions

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Pythagorean theorem proof using similarity

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Practice

Simplify square rootsGet 3 of 4 questions to level up!

Simplify square-roots (variables)Get 3 of 4 questions to level up!

Simplify square-root expressionsGet 3 of 4 questions to level up!

Topic E: Lessons 25-26: Trigonometry intro

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Intro to the trigonometric ratios

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Trigonometric ratios in right triangles

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Hypotenuse, opposite, and adjacent

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Trigonometric ratios in right triangles

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Triangle similarity & the trigonometric ratios

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Solving for a side in right triangles with trigonometry

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Solving for a side in right triangles with trigonometry

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Practice

Trigonometric ratios in right trianglesGet 3 of 4 questions to level up!

Solve for a side in right trianglesGet 3 of 4 questions to level up!