Answer:
39.53 ft^2
Explanation:
A = l*w
= 12*3 = 36
A = 1/2 pir^2
The dm is 3, the rs is 3/2
=1/2 pi* (3/2)^2
= 1/2 *3.14 * 9/4
3.5325
Add them together
36+3.532539.5325
Round to nearest hundredth
39.53 ft^2
Sorry if it's so complicated! Hope this helped <3