Answer:
C
Step-by-step explanation:
So first, you find the area of a rectangle, which would be 15 * 30 = 450. Next, find the area of the semicircle by doing [tex]\pi *r^2 / 2[/tex] (you have to divide by 2 because it's only have a circle).
The radius is half of 15, so 15 / 2 = 7.5. This would be:
[tex]\pi * 7.5^2 / 2[/tex]
[tex]=\pi * 56.25 /2[/tex]
[tex]=28.125\pi[/tex]
[tex]=28.125*3.14=88.3125[/tex]
The last step is to add 450 + 88.3125 = about 538.3 m^2
