Exact Circumference

Find the exact circumference of a circle with diameter of 20 inches.

• 40 π in

• 100 π in

• 10 π in

• 20 π in

Find the exact circumference of a circle with a radius of 14

• 14 π

• Cherry π

• 7 π

• 28 π

Find the exact circumference of a circle with a diameter of 9 cm.

• 9 π cm

• 18 π cm

• 4.5 π cm

• 91 π cm

Find the exact circumference of a circle with a radius of 8

• Apple π

• 4 π

• 16 π

• 8 π

Find the circumference of the circle.

• 113.04 in

• 1017.36 in

• 254.34 in

• 56.52 in

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

• circumference

• diameter

• radius

• area

• radius

• diameter

• area

• pi

Circumference is

• a measure of distance from the center to the edge of a circle

• the outer boundary of a circle

• a measure of distance across the center of a circle

• a comparison of the distance around to the distance across the center of a circle