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svp [43]
2 years ago
14

The radius of a semicircle is 4 miles. What is the semicircle's area?

Mathematics
1 answer:
adell [148]2 years ago
6 0

Answer:

8\pi miles or 25.133 miles

Step-by-step explanation:

your radius is 4 miles.

The area of a circle is A= \pi r^{2}

Therefore, the area of this circle is 4^{2} \pi, or 16\pi

Half of this area, because what you're looking for is a semi-circle, is:

8\pi (exact) or 25.133 (rounded) miles.

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