Question

A particular model of walkie-talkie can broadcast in a circular area. The radius of the broadcast area is 10,000 feet.

Find the area of this circle to the nearest square foot. Use 3.14 for p.

A. 314,000,000 ft2

B. 100,000,000 ft2

C. 1,256,000,000 ft2

D. 62,800 ft2

Answer 1

the answer is 314,000,000 ft2, you would multiply 10,000 by 2 and divide by pi i belive. I'm not the best at math but I hope this helps.

Answer 2

The answer is A. 314,000,000 ft2

The area (A) of the circle with radius r is:
A = π r²

We have:
r = 10 000 ft
π = 3.14

A = 3.14 * (10 000)² = 3.14 * 100 000 000 = 314 000 000 ft²