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# Module 3: Similarity

Learn

Dilating shapes: expandingDilating shapes: shrinkingDilating pointsDilations: scale factorDilations and properties

Practice

Dilate pointsGet 3 of 4 questions to level up!

Dilations: scale factorGet 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!

Learn

Intro to triangle similarityTriangle similarity postulates/criteriaDetermining similar trianglesSimilar shapes & transformations

Practice

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

Similarity & transformationsGet 3 of 4 questions to level up!

Learn

Intro to the Pythagorean theoremPythagorean theorem examplePythagorean theorem word problem: carpetPythagorean theorem intro problemsPythagorean theorem with isosceles trianglePythagorean theorem word problem: fishing boatThiago asks: How much time does a goalkeeper have to react to a penalty kick?Garfield's proof of the Pythagorean theoremBhaskara's proof of the Pythagorean theoremPythagorean theorem proof using similarityAnother Pythagorean theorem proof

Practice

Use Pythagorean theorem to find right triangle side lengthsGet 5 of 7 questions to level up!

Use Pythagorean theorem to find isosceles triangle side lengthsGet 5 of 7 questions to level up!

Right triangle side lengthsGet 3 of 4 questions to level up!

Use area of squares to visualize Pythagorean theoremGet 3 of 4 questions to level up!

Pythagorean theorem word problemsGet 3 of 4 questions to level up!