Circumference
Circumference/Area
Area
Find Area given Circumference
semi circles, tires, and more
100

What is the circumference of a circle when the diameter is 2 cm?

6.28 cm

100

What is the area of a circle when the radius is 2 in?

12.56 sq in

100

What is the area of a circle when the radius is 1 m?

3.14 sq m

100

What is the area of a circle whose circumference is 62.8 ft?

314 sq ft

100

A semi circle has a radius of 3 m. Find the distance around the outside of the semi circle?

15.42 m

200

What is the circumference of a circle when the radius is 3 mm?

18.84 mm

200

What is the circumference of a circle when the diameter is 30 u?

94.2 u

200

What is the area of a circle when the radius is 8 in?

200.96 sq in

200

What is the area of a circle whose circumference is 69.1 ft?

379.94 sq ft
200

A pizza has a diameter of 14 in.  Find the area of half the pizza.

76.93 sq in

300

What is the circumference of a circle when the diameter is 5 m?

15.7 m

300

What is the radius of a circle when the area is 153.86 sq m?

7 m

300

What is the area of a circle when the diameter is 6 in?

28.26 sq in

300

What is the area of a circle whose circumference is 25.1 cm?

50.24 sq cm

300

A tire has a radius of 4 in. If the tire makes 9 revolutions to go from the slide to the swings, then what is the distance from the slide to the swings?

226.08 in

400

What is the circumference of a circle when the radius is 7.5 in?

47.1 in

400

What is the circumference of a circle when the diameter is 55 yd?

172.7 yd

400

What is the area of a circle when the radius is 3.14 cm?

30.959144 sq cm

400

What is the area of a circle whose circumference is 56.52 yd?

254.34 sq yd

400

The bottom of my cup has a circumference of 12pi cm. What is the radius of the cup?

6 cm

500

What is the circumference of a circle when the radius is 3.14 ft?

19.7192 ft

500

What is the area of a circle when the diameter is 10 mm?

78.5 sq mm

500

What is the area of a circle when the diameter is 15 cm?

176.625 sq cm

500

What is the area of a circle whose circumference is 75.36 in? Give your answer in terms of pi

144pi sq in

500

A circle has a radius of 9 in. What is the area in terms of pi?

81pi in

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