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.

Question

shane_b · Answer

Ops...make that:
$$A_{circle}=\pi r^2$$
I just did a cylinder area a moment ago and pasted the wrong thing :)

anonymous · Answer

still confused

shane_b · Answer

$$\pi=3.15$$$$r=10,000ft$$$$A=\pi r^2$$Plug in the value for r and pi and you'll get your answer.

anonymous · Answer

so 10,000 and 3.14 and what do i do with it?

shane_b · Answer

$$r^2=10000^2$$Now just multiply that times 3.14 to get the area.

anonymous · Answer

314,000,000 ft2

shane_b · Answer

Sorry...yep, that's correct.