Circumference of Circles

It is the distance around a circle.

• Perimeter

• Area

• Circumference

The approximate value of pi is _______.

• 3

• 3.14

• 7.11

The circumference of a circle with a radius of 0.5 meter is _____.

• 3.14 m

• 1.57 m

• 6.28 m

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

• 12.56 cm

• 25.12 cm

• 6.28 cm

Find the circumference of a circle whose radius is 5 cm.

• 15.7 cm

• 30.4 cm

• 31.4 cm