Circumference of a Circle

Find the circumference, rounding your answer to 1d.p.

• 18.8m

• 37.7m

• 9.4m

• 18.8cm

what is the circumference of this circle ?

• 3.14 cm 

• 37.68 cm

• 24 cm

• 68.4 cm

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

• 10.5 ft

• 42 ft

• 65.94 ft

• 131.95 ft

What is the distance around a circle?

• Circumference

• Area

• Diameter

• Radius

Find the circumference of the circle. Round to the nearest tenth.

• 113.0 in.

• 1017.4 in.

• 254.3 in.

• 56.5 in.

Find the circumference. Round to the nearest tenth.

• 18.8 cm.

• 75.4 cm.

• 37.7 cm.

• not enough information

Find the circumference of the circle.

• 113.04 in

• 1017.36 in

• 254.34 in

• 56.52 in

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's perimeter? (Use 3.14 for pi.)

• 21.25 m²

• 19.55 m²

• 15.36 m²

• 18.84 m

How many cookies are there?

• 48 cookies

• 24 cookies

• 8 cookies

• 4 cookies

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference (use 3.14 for pi)?

• 11.32 ft

• 12.25 ft

• 10.99 ft

• 8.75 ft