Circle Geometry Quiz

A circle has diameter 22 cm. What is the radius?

• 22 cm

• 88 cm

• 44 cm

• 11 cm

Jayson is putting in a new circular shaped fire pit in his backyard. The diameter of the fire pit is 4 feet. What is the area of the fire pit? (Use 3.14 for π)

• 12.56 sq ft

• 56.52 sq ft

• 25.12 sq ft

• 3.14 sq ft

What is the approximate area of a circle with a radius of 2.8 cm? Round your answer to the nearest tenth.

• 24.7 cm

• 24.6 cm

• 17.6 cm

• 8.8 cm

The Jones family wants to enclose their circular garden with a fence. It has a radius of 62.5. To the nearest foot, what is the minimum length of fencing they need to buy?

• 56.25 ft

• 246.2 ft

• 365.56 ft

• 392.5 ft

If the area of a circle is 64π, what is the circumference of the circle?

• 8π

• 16π

• 32π

• 64π

If the gardener wants to outline the smaller garden with edging, how many meters will be needed?

• 157 m

• 50 m

• 314 m

• 100 m

How much more edging will be needed for the larger garden than the smaller one?

• 62.8 m

• 20 m

• 157 m

• 314 m

How much fabric will be needed to cover the area of both gardens?

• 2,827 m²

• 1,963 m²

• 3,848 m²

• 1,570 m²

What is the term for the distance across a circle through its center?

• Radius

• Circumference

• Diameter

• Center

What is the term for the distance around the outside of a circle?

• Radius

• Diameter

• Center

• Circumference