Circles in Terms of Pi

A circle has a radius of 9 cm. What is its circumference?

• 9π cm

• 18π cm

• 4.5π cm

• 81π cm

Tags

CCSS.7.G.B.4

A circle has an area of 16π in². What is its radius?

• 32 in

• 16 in

• 4 in

• 2 in

Tags

CCSS.7.G.B.4

A circle has a diameter of 4 cm. What is its circumference?

• 4π cm

• 2π cm

• 8π cm

• 16π cm

Tags

CCSS.7.G.B.4

A circle has a radius of 5 cm. What is its area?

• 50π cm²

• 10π cm²

• 25π cm²

• 5π cm²

Tags

CCSS.7.G.B.4

Find Circumference. Leave answer in terms of pi (π).

• 36π

• 9π

• 4.5π

• 18π

Tags

CCSS.7.G.B.4

What is π ? (Best Choice)

• The ratio of the circumference of any circle to its diameter.

• Exactly 3.14

• Exactly 3.1415

• Exactly 3.141593

Tags

CCSS.7.G.B.4

What is Pi?

• Ratio of Circumference to diameter

• The distance around the outside of a circle

• The distance from one side of a circe to the other through the center

• The distance from the center of a circle to the outside

Tags

CCSS.7.G.B.4

A circle has a circumference of 40π inches. What is its diameter?

• 10 in

• 20 in

• 80 in

• 40 in

Tags

CCSS.7.G.B.4

A circle has a diameter of 12 ft. What is its area?

• 12π ft²

• 6π ft²

• 72π ft²

• 36π ft²

Tags

CCSS.7.G.B.4

A circle has a circumference of 28π inches. What is its radius?

• 28 in

• 14 in

• 56 in

• 7 in

Tags

CCSS.7.G.B.4