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# Unit: Module 3: Similarity

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### About this unit

"The experimental study of rotations, reflections, and translations in Module 2 prepares students for the more complex work of understanding the effects of dilations on geometrical figures in their study of similarity in Module 3. They use similar triangles to solve unknown angle, side length and area problems. Module 3 concludes with revisiting a proof of the Pythagorean Theorem from the perspective of similar triangles. " Eureka Math/EngageNY (c) 2015 GreatMinds.org### Learn

### 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!

Level up on the above skills and collect up to 320 Mastery points

### Learn

### Practice

- Determine similar triangles: AnglesGet 3 of 4 questions to level up!
- Similarity & transformationsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 160 Mastery points

### Learn

### 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!

Level up on the above skills and collect up to 400 Mastery points

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Level up on all the skills in this unit and collect up to 1100 Mastery points!