Can someone help me I’m having trouble finding the area of the shaded region in each figure and round the answer to two decimal places and I have to use 3.15:(

Answer:
Step-by-step explanation:
Area of a Semi Circle
Area = 1/2 pi r^2
r = d/2
r = 3/2
r = 1.5
Area = 1/2 3.14 * 1.5^2
Area = 1/2 * 3.14 * 2.25
Area = 3.5325
Area of Rectangle
L = 12 Yd
W = 4 Yd
Area = L * W
Area = 12 * 4 = 48
Total Area = 51.5325