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# Unit 4: Similarity

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## 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.### Learn

### Practice

- Similarity & transformationsGet 3 of 4 questions to level up!
- Rational equations introGet 3 of 4 questions to level up!

### Learn

### Practice

- Determine similar triangles: AnglesGet 3 of 4 questions to level up!
- Determine similar triangles: SSSGet 3 of 4 questions to level up!
- Prove triangle similarityGet 3 of 4 questions to level up!

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

### Learn

### 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!

### Learn

### Practice

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

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Use similar trianglesGet 3 of 4 questions to level up!

### Learn

### Practice

- Prove theorems using similarityGet 3 of 4 questions to level up!

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

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Level up on all the skills in this unit and collect up to 1000 Mastery points!