Question

MEDAL TO CHECK:
MY CHOICE: B

The area of circle B is 36 times greater than the area of circle A. If the radius of circle B is 12 feet, what is the radius of circle A?
A.2 feet
B.4 feet
C.6 feet
D.36 feet

Answer 1

Find the area of circle B.

Answer 2

\(\sf A = \pi r^2\)

\(\sf A = (3.14) (12)^2\)

Simplify

Answer 3

i meant c btw

Answer 4

C is wrong.

Answer 5

Simplify that above there.

Answer 6

i am but i put down the wrong answer orginally wanted to clear it up anyways 452.16

Answer 7

Yep, now divide it by 36 to get the area for circle A.

Answer 8

'Cause circle B's area is 36 times the area of circle A.

Answer 9

12.56

Answer 10

Yep, now plug it into the formula to find the area of a circle.

\(\sf A = \pi r^2\)

Plug in what we know:

\(\sf 12.56 = (3.14) r^2\)

Divide 3.14 to both sides, what's 12.56 / 3.14?

Answer 11

4

Answer 12

2

Answer 13

Square root of 4*

Answer 14

Lol..yes, that's our answer.

Answer 15

\(\sf 4 = r^2\)

\(\sf r = \sqrt{4}\)

\(\sf r = 2\)