Answer:
60.6
Explanation:
The rectangle is 12*4. You have the radius of the semicircle, so you multiply that by 2 to get 4 for the diameter, then getting the width of the rectangle.
After that, do pi * r^2. This will be pi*4. You'll get 12.6.
After multiplying 12*4, 48, you add 12.6 and 48, and get 60.6