Find Circumference Given Diameter and Radius

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?

• 11.32 ft

• 12.25 ft

• 10.99 ft

• 8.75 ft

Find the circumference (round to the nearest hundredth).

• 2.55 cm

• 8.36 cm

• 12.56 cm

• 25.12 cm

Find the circumference (round to the nearest hundredth).

• 1.62 cm

• 2.51 cm

• 5.02 cm

• 50.24 cm

Steven purchases a bowl. The diameter of the

bowl is 14 cm. What is the circumference of the

bowl? Round to the nearest hundredth. Don't forget to label.

Daniel wants to buy cookies for his friend. The

radius of a cookie is 5 inches. What is the cookie’s

circumference? Round to the nearest hundredth. Don't forget to label.

Find the perimeter of the semicircular. Round your answer to the nearest hundredth.

• 23.13 m

• 28.26 m

• 14.13 m

• 56.52 m

Find the circumference (to the nearest whole number)

• 88 in

• 44 in

• 116 square in

• None of the above

What is the name for the distance around a circle?

• Diameter

• Radius

• Circumference

• Chord

What is the formula for circumference of a circle given the diameter?

• C = pi x r

• C = pi x 2r

• C = pi x D

• C = pi x 2D

Steven purchases a bowl. The diameter of the
bowl is 14 cm. What is the circumference of the 
bowl?

• 28 cm

• 43.96 cm

• 87.96 cm

• 7 cm