Area of a Circle

A circle has a diameter of 20 what is it's area?

• 314.16

• 1256.64

• 314.18

• 10

A circle has a radius of 9. What is it's area?

• 63.62

• 245.74

• 254.47

• 1017.88

what is the formula for finding the area of a circle?

• 2r

• πr2

• 2πr

Bob has a pool with a radius of 15 feet. what is it's area?

• 706.86

• 176.71

• 225

• 167.17

What is the Area Formula for a Circle?

• A = $\pi$ * r * r

• A = $\pi$ * d

• A = 2 * $\pi$ * r

CHOOSE THE EQUATION THAT YOU WOULD USE TO SOLVE:

Find the area of circle F.

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• 
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Find the area of the quarter circle. Round you answer to the nearest hundredth.

• 58.88

• 78.50

• 7.85

• 157.00

How many cookies are there?

• 48 cookies

• 24 cookies

• 8 cookies

• 4 cookies

Max has a pizza with a diameter of 100 inches. What is it's area?

• 31415.93

• 7853.98

• 785.398

• 3141.593

A circle has a diameter of 1. What is it's area?

• 12.57

• 3.14

• 0.6241

• 0.79