1. In the following figure, the two triangles are congruent. The corresponding parts are marked. We can write ∆ RAT = ?

2. Complete the congruence statement ∆ BCA = ?

3. Complete the congruence statement ∆ QRS

4. If ∆ ABC and ∆ PQR are to be congruent, name one additional pair of corresponding parts

5. By which congruence, is ∆ ABC = ∆ FED?