Area of a Circle

Area of Circles

Open Ended

What is the formula for area of a circle?

Multiple Choice

What is the area of a circle with a diameter of 14m?

________ $$m^2$$

• 153.9

• 43.96

• 615.4

• 21.98

Fill in the Blanks

What is the area of a circle with a radius of 12mm? Round your answer to the nearest tenth.

$mm^2$

Fill in the Blanks

What is the area of a circle with a diameter of 20 yards?

$yd^2$

Fill in the Blanks

A clock face has a radius of 8 inches. What is the area of the clock face? Round your answer to the nearest hundredth.

$in^2$

Fill in the Blanks

A DVD has a diameter of 12 cm. What is the area of the DVD? Round your answer to the nearest hundredth.

$cm^2$

Fill in the Blanks

A company makes steel lids that have a diameter of 13 inches. What is the area of each lid? Round your answer to the nearest hundredth.

$in^2$

Fill in the Blanks

The most popoular pizza at Pavone's Pizza is the 10-inch personal pizza with one topping. What is the area of a pizza with a diameter of 10 inches? Round your answer to the nearest tenth.

$in^2$

Fill in the Blanks

CHALLENGE:

A circular pen has an area of 200.96 $yd^2$ . What is the circumference of the pen?