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The answer is the last choice.

Yes, it looks sixth grade.

The area of each semicircle will be 6.28 square feet. Then the correct option is D.

What is the area of a circle?

Let d be the diameter of the circle. Then the area of the circle will be

A = (π/4)d² square units

The semicircle is the half of circle.

Then the area of the semicircle will be

A = (π/8)d² square units

The diameter of the semicircle will be 4 feet.

Then the area of the semicircle will be

A = (π/8) (4)²

A = (π/8) 16

A = 2π

A = 6.28 square feet

Then the correct option is D.

Learn more about area of a circle here:

https://brainly.com/question/13004063

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