Circle Circumference Quiz

What is the formula to calculate the circumference of a circle?

• 2 * π * r

• 3 * π * r

• 2 * r

• π * d

Tags

CCSS.7.G.B.4

If the radius of a circle is 5 cm, what is its circumference? (Use π = 3.14)

• 15.7 cm

• 31.4 cm

• 25 cm

• 10 cm

Tags

CCSS.7.G.B.4

Find the circumference of a circle with a radius of 8 cm. (Use π = 3.14)

• 50.24 cm

• 10.42 cm

• 32.56 cm

• 16.28 cm

Tags

CCSS.7.G.B.4

If the circumference of a circle is 18.84 cm, what is its diameter? (Use π = 3.14)

• 12 cm

• 6 cm

• 5 cm

• 8 cm

Tags

CCSS.7.G.B.4

Calculate the circumference of a circle with a diameter of 12 meters. (Use π = 3.14)

• 37.68 meters

• 10.26 meters

• 15.72 meters

• 24.56 meters

Tags

CCSS.7.G.B.4

Find the circumference of a circle with a radius of 15 cm. (Use π = 3.14)

• 30.5 cm

• 94.2 cm

• 75.6 cm

• 110.8 cm

Tags

CCSS.7.G.B.4

The line segment that has endpoints on a circle and passes through the center of the circle.

• radius

• minor arc

• diameter

• secant line

The distance around the circle.

• congruent circles

• semicircle

• arc

• circumference

A line segment that has one endpoint on a circle and the other endpoint at the center of the circle.

• circle

• central angle

• radius

• arc

• Name the circle: Circle B
• Name the circle: Circle DE
• Name the circle: Circle A
• Name the circle: Circle DBC

Tags

CCSS.HSG.CO.A.1