Question

What is the approximate area of a circle with a radius of 28 centimeters? Use π ≈ 3.14.

A.
175.8 square centimeters

B.
4923.5 square centimeters

C.
87.9 square centimeters

D.
2461.8 square centimeters

Answer 1

3.14 x pi^2

Answer 2

Area of a circle is:

\(\pi r^2\)

So what's 28 * 28?

Answer 3

So can you figure out 3.14 x 28^2? @~*Ashtyn*~

Answer 4

I'm confused -_-

Answer 5

First, what is 28^2?

Answer 6

56

Answer 7

Ummmm... @AnswerMyQuestions

Answer 8

the square of a number is the number times itself 28 times 28

Answer 9

go back to formula to find area of a circle pi (3.14) times the radius (28^2) to solve
a= 3.14 times 28 times 28

Answer 10

So 28*28 is what you want me to figure out ?

Answer 11

that would be the radius squared that is needed in the formula

Answer 12

28*28=784

Answer 13

yes now put that number in the formula times pi (3.14)

Answer 14

formula again to find area of circle is pi times radius squared