Answer:
3rd one or 76.3 in.²
Step-by-step explanation:
First, you find the area of the rectangle. Do 8 times 6 to get 48 in.
Then, you find the area of one of the semicircles. You can do them separately or put them together to get a whole circle and then find the area.
Whole circle:
A = r²π
Radius is half of diameter. The diameter is 6, so the radius is 3.
You do 3 times 3 = 9.
Finally, you do 9 times π, or 9 times 3.14 = 28.27 or 28.26.
Lastly, you put 48 and 28.26 together to get:
76.26 in.²
You can round it to 76.3.
