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# Unit 17: Congruence

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## About this unit

Learn what it means for two figures to be congruent, and how to determine whether two figures are congruent or not. Use this immensely important concept to prove various geometric theorems about triangles and parallelograms.### Learn

### Practice

- Congruence & transformationsGet 3 of 4 questions to level up!

### Learn

### Practice

- Justify triangle congruenceGet 3 of 4 questions to level up!

### Learn

### Practice

- Determine congruent trianglesGet 5 of 7 questions to level up!
- Prove triangle congruenceGet 3 of 4 questions to level up!

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

### Learn

### Practice

- Prove triangle propertiesGet 3 of 4 questions to level up!

### Learn

### Practice

- Find angles in congruent trianglesGet 3 of 4 questions to level up!
- Find angles in isosceles trianglesGet 3 of 4 questions to level up!

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

### Learn

### Practice

- Prove parallelogram propertiesGet 5 of 7 questions to level up!

### Learn

### Practice

- Justify constructionsGet 3 of 4 questions to level up!

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

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