Circles: Circumference & Area Quiz

What is the circumference of a circle with a radius of 4 cm? Use 3.14 for pi.

• 50.24 cm

• 12.56 cm

• 25.12 cm

• 6.28 cm

Tags

CCSS.7.G.B.4

The diameter of a circle is 24 yards, what is the radius?

• 48 yards

• 72 yards

• 12 yards

• 75.36 yards

Tags

CCSS.7.G.B.4

The radius of a circular garden is 8 feet, what is the area? Use 3.14 for pi.

• 25.12 ft

• 50.24 ft

• 12.56 ft

• 200.96 ft

Tags

CCSS.7.G.B.4

The diameter of a circle is 6 cm. What is the area? Use 3.14 for pi.

• 28.26 cm

• 113.04 cm

• 18.84 cm

Tags

CCSS.7.G.B.4

What is the diameter of a circle with a radius of 7 in?

• 3.5 in

• 14 in

• 21 in

• 49 in

Tags

CCSS.7.G.B.4

A circular swimming pool is 21 feet in diameter. What is the circumference of the swimming pool?

• 65.94 ft

• 131.88 ft

• 32.97 ft

• 24.14 ft

Tags

CCSS.7.G.B.4

What is the area of a circle with a radius of 10 in?

• 314 in

• 31.4 in

• 3,140 in

• 62.8 in

Tags

CCSS.7.G.B.4

Which formula is used to calculate the area of a circle?

• A = πr²

• A = πd

• A = 2πr

Tags

CCSS.7.G.B.4

If my diameter is 36 inches, what is my radius?

• 72 in

• 54 in

• 18 in

• 108 in

Tags

CCSS.7.G.B.4

What is the distance around a circle?

• Area

• Diameter

• Radius

• Circumference