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 pi.

A. 314,000,000 ft2

B. 100,000,000 ft2

C. 1,256,000,000 ft2

D. 62,800 ft2

Answer 1

@satellite73

Answer 2

formula for the area of a circle is pi * r^2

use 3.14 for pi

Answer 3

(radius * radius * 3.14)

Answer 4

314,000,000 ft2

Answer 5

3.14 with a bunch of zeros behind it, i dont have to do the math to guess based on those answers :)

Answer 6

haha thanks :)

Answer 7

you bet

Answer 8

You cut square corners with side lengths that are whole numbers from a piece of cardboard with dimensions 20 inches by 30 inches. You then fold the cardboard to create a box with no lid. Which of the following dimensions will give you the greatest volume?

A. 12 in. by 22 in. by 4 in.

B. 10 in. by 20 in. by 5 in.

C. 14 in. by 24 in. by 2 in.

D. 10 in. by 24 in. by 6 in.