Answer:
25 degrees
Step-by-step explanation:
angle CAD is a right angle, which is 90 degrees, and angle CAF is a straight line (180 degrees), which makes angle DAF a right angle. It is given that angle EAF is 65 degrees, therefore,
90 degrees - 65 degrees = 25 degrees
Divide 15 by 40 to get the percent and that tells you that its 0.375 once you have that you move the decimal 2 spots to the left to get 37.5%