I will think it will be ANSWER - TWO
This is how the sketch should look on your graph!
<span>x-y=2y -> x=3y and
3x-40+2y=180 --> 9y-40+2y=180 --> 11y=220 --> y=20, x=60 --> <A=<C=140 degrees, <B=<D=40 degrees.</span>
Just multiply 37.7 by 4 and get your answer.