Question

what is the answer ??so that quadrilateral ABCD is a parallelogram.

Answer 1

if, all corners of a rectangle add up to 360, you can find m<C by doing:
(360 - 2*37)/2 = 143
There m<C = 143. You divide by two, because m<A and m<C are the same, and those are the two remaining corners left in the equation, meaning you divide by 2

Answer 2

The answer would be B 143