Please help it’s super hard

Answer:
It's answer is A. 557 square feet
Step-by-step explanation:
Area of semi circle
= 1/2 * π * r²
= 1/2 * 3.14 * 10²
= 157 square feet
Area of square
= 20²
= 400 square feet
Now
Total area
= 400 + 157
= 557 square feet.
Hope it will help :)❤