Answer:
62
Step-by-step explanation:
There are two lengths so 77 + 77 is 154. Now, subtract from the perimeter. 278 minus 154 is 124. This is both widths combined so to only get one, divide by 2. 124 divided by 2 is 62.
sorry if it is wronged the answer is D
option D
Angle ADF and Angle FDE
ADF+ FDE