Circumference of a Circle

Find the circumference when diameter is 10 cm. Round your answer to 1 decimal place.

• 31.4 cm

• 62.8 cm

• 15.7 cm

• 78.5 cm

Find the circumference when diameter is 7 cm. Round your answer to 1 decimal place.

• 21.9 cm

• 22.0 cm

• 44.0 cm

• 11.0 cm

Find the circumference when diameter is 3 mm. Round your answer to 1 decimal place.

• 18.8 mm

• 9.4 mm

• 18.8 cm

• 4.7 mm

Find the circumference when diameter is 6 m. Round your answer to 1 decimal place.

• 18.8 m

• 37.7 m

• 9.4 m

• 18.8 cm

Find the circumference when diameter is 0.5 m. Round your answer to 1 decimal place.

• 1.6 m

• 1.5 m

• 0.8 m

• 3.1 m

Find the diameter when circumference is 9 cm. Round your answer to 1 decimal place.

• 2.9 cm

• 2.8 cm

• 8.6 cm

• 4.2 cm

Find the circumference when diameter is 25 cm. Round your answer to 1 decimal place.

• 78.5 cm

• 39.2 cm

• 39.3 cm

• 490.9 cm

Find the circumference when diameter is 1.3 m. Round your answer to 1 decimal place.

• 4.1 m

• 4.0 m

• 2.0 m

• 2.1 m

Find the circumference when radius is 2 cm. Round your answer to 1 decimal place.

• 25.1 cm

• 12.6 cm

• 12.5 cm

• 6.3 cm

Find the circumference when radius is 16 cm. Round your answer to 1 decimal place.

• 100.5 cm

• 100.4 cm

• 50.3 cm

• 201.1 cm