Circles: Area and Circumference

If the area of a circle measures 25π cm², what is the circumference of the circle in terms of π?

• 5π cm

• 10π cm

• 50π cm

• 100π cm

Tags

CCSS.7.G.B.4

If the circumference of a circle measures 8π cm, what is the area of the circle in terms of π?

• 4π cm²

• 8π cm²

• 16π cm²

• 32π cm²

Tags

CCSS.7.G.B.4

If the area of a circle measures 4π cm2, what is the circumference of the circle in terms of π?

• 4π cm

• 8π cm

• 12π cm

• 16π cm

Tags

CCSS.7.G.B.4

The area of a circle is 615.44 in2. What is the diameter of the circle? Use 3.14 for π.

• 14 in

• 18 in

• 20 in

• 28 in

Tags

CCSS.7.G.B.4

The circumference of a circle is 65π. In terms of pi, what is the area of the circle?

• 600 π

• 936.5 π

• 950.25 π

• 1056.25 π

Tags

CCSS.7.G.B.4

Gina has a circular gold bracelet with a diameter of 3 inches. She wants to cover the bracelet with a strip of lace. How long should the strip of lace be to cover the bracelet entirely without any excess? Use 3.14 for π.

• 4.71 in

• 7.065 in

• 9.42 in

• 15.22 in

Tags

CCSS.7.G.B.4

The circumference of a circle is 8π cm. What is the RADIUS of the circle?

• 2 cm

• 4 cm

• 6 cm

• 8 cm

Tags

CCSS.7.G.B.4

In terms of π, what is the area of a circle with a diameter of 50 cm?

• 25π cm²

• 2100 cm²

• 625π cm²

• 1000π cm²

Tags

CCSS.7.G.B.4

A circular table has a diameter of 6 feet. In terms of π, what is the area of the table?

• 3π ft2

• 6π ft2

• 9π ft2

• 36π ft2

Tags

CCSS.7.G.B.4

If the area of a circle measures 16π cm2, what is the circumference of the circle in terms of π?

• 4π cm

• 8π cm

• 24π cm

• 32π cm

Tags

CCSS.7.G.B.4