Answer:
A = 33.6 sq units
Step-by-step explanation:
A (trapezoid) = 1/2(4)(14+2) = 2(16) = 32
A (semi-circle) = π(1)/2 = 1.57
280 divided by 7 equals 40 and forty times 12 equals 480 so the answer is 480
a. 40 if you dont believe me just look at a 40 degree triangle then the pic
