**Lesson Steps**:

Take 180° and minus angles a and b. If the answer for C is the same. It means the traingle is equivalent

**Answer**:

He is correct. The angles of a triangle add up to 180°. Therefore if a and b are 60 C must be 60 and therefore the triangle is equivalent.

**Grade**: 8

**Level**: Primary

**Subject**: Math

**Topic**: Addition

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**Grade**: 8

**Level**: Primary

**Subject**: Math

**Topic**: Addition