Area and Circumference Review

Radius/Diameter

100

If the radius of a circle is 5m what is the DIAMETER?

10m

200

If the diameter is 20m what is the RADIUS?

10m

300

If the radius of a circle is 30.5m the DIAMETER is?

61m

400

If the radius is 20m, what is the DIAMETER of the circle?

40m

500

If the Radius is 102.3m what is the DIAMETER?

204.6m

Circumference - Radius

100

Find the circumference of a circle with a radius of 5m

31.4 m

200

Find the Circumference of a circle with a radius of 10m

62.8 m

300

Find the Circumference of a circle with a radius of 25.5m 

160.14 m

400

Find the Circumference of a circle with a radius of 17.3m

108.64 m

500

Find Circumference of a circle with a radius of 75m 

471 m 

Area - Radius

100

Find the Area of a circle with a Radius of 4m

50.24m²

200

Find the Area of a circle with a Radius of 14

615.44m²

300

Find Area when the Radius is 21m

1,384.74m²

400

Find Area when Radius = 7.2m 

162.78m²

500

Find the Area of a circle with a Radius of 50m

7,850m²

Circumference - Diameter

100

What is the circumference of a circle with the diameter of 2m?

6.28m

200

What is the circumference of a circle with a diameter of 4m?

12.56m

300

What is the circumference of a circle with a diameter of 46m?

144.44m

400

What is the circumference of a circle with a diameter of  102m? 

320.28m

500

What is the circumference of a circle with a diameter of 35.5m? 

111.47m

Area - Diameter

100

What is the area of a circle with a diamater of 6?

28.26m²

200

What is the area of a circle with a diameter of 10.5m?

86.55m²

300

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

314m²

400

What is the area of a circle with a diameter of 24.4m?

467.36m²

500

What is the area of a circle with a diameter of 18m?

254.34m²