Given: polygon CDEF is congruent to polygon KLMN. Identify the congruent corresponding parts.

Line DE is congruent to ?

a) Line KL
b) Line KN
c) Line MN
d) Line LM

is it d?

no

No, the correct answer is a) Line KL.

Yes, you are correct. Line DE is congruent to line LM in polygons CDEF and KLMN. In order to identify the congruent corresponding parts, you have to look for corresponding sides and angles in the congruent polygons. In this case, since the given polygons CDEF and KLMN are congruent, their corresponding sides and angles are also congruent. So, line DE in polygon CDEF corresponds to line LM in polygon KLMN, making the correct answer (d) Line LM.

1. Draw 2 rectangles.

2. Starting from the lower left hand corner, go CCW and label the 1st one CDEF.

3. Repeat step 2 for the 2nd rectangle, labeling it KLMN.

a. KL = CD.
b. KN = CF.
c. MN = EF.
d. LM = DE.