Answer:
m<K = 129
m<M = 93
Step-by-step explanation:
Since this is a parallelogram and JK is parallel to ML:
angle <K and angle <L are supplementary angles and their sum is = 180
<K + 51 = 180 subtract 51 from both sides
<K = 129
Same rule applies to angle <J and angle <M
87 + <M = 180 subtract 87 from both sides
<M = 93
