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Radius

100

If the diameter of a circle was 4 cm, what would be the radius?

2 cm

200

If the diameter of a circle was 10 cm, what would be the radius?

5 cm

300

If the diameter of a circle was 15 cm, what would be the radius?

7.5 cm

400

If the diameter of a circle was 25 cm, what would be the radius?

12.5 cm

500

If the diameter of a circle was 120 cm, what would be the radius?

60 cm

Diameter

100

If the radius of a circle was 6 cm, what would be the diameter?

12 cm

200

If the radius of a circle was 10 cm, what would be the diameter?

20 cm

300

If the radius of a circle was 15 cm, what would be the diameter?

30 cm

400

If the radius of a circle was 25 cm, what would be the diameter?

50 cm

500

If the radius of a circle was 100 cm, what would be the diameter?

200 cm

Area of a Circle

100

The radius of a circle is 12 cm. Find the area. Round to the nearest hundredth. 

452.16 cm²

200

The radius of a circle is 7 cm. Find the area. Round to the nearest hundredth.

153.86 cm²

300

The radius of a circle is 3 cm. Find the area. Round to the nearest hundredth.

28.26 cm²

400

The radius of a circle is 15 cm. Find the area. Round to the nearest hundredth.

706.5 cm²

500

The radius of a circle is 22 cm. Find the area. Round to the nearest hundredth.

1519.76 cm²

Area of a Circle

100

The diameter of a circle is 12 cm. Find the area. Round to the nearest hundredth.

113.04 cm²

200

The diameter of a circle is 24 cm. Find the area. Round to the nearest hundredth.

452.16 cm²

300

The diameter of a circle is 15 cm. Find the area. Round to the nearest hundredth.

176.63 cm²

400

The diameter of a circle is 25 cm. Find the area. Round to the nearest hundredth.

490.63 cm²

500

The diameter of a circle is 32 cm. Find the area. Round to the nearest hundredth.

803.84 cm²