Circle Geometry Quiz

What is the formula for the area of a circle?

• A = πr²

• A = 2πr

• A = πd

• A = r²

Tags

CCSS.7.G.B.4

Find the diameter if the radius is 3.75 inches.

• 7.5 inches

• 3.75 inches

• 11.25 inches

• 1.875 inches

Find the area of a circle with a radius of 4 inches.

• 50.24 in²

• 25.12 in²

• 12.56 in²

• 16 in²

Tags

CCSS.7.G.B.4

Find the circumference of a circle with a diameter of 13 meters.

• 40.82 meters

• 26 meters

• 81.64 meters

• 20.42 meters

Tags

CCSS.7.G.B.4

Find the radius if the diameter is 19 meters.

• 9.5 meters

• 19 meters

• 38 meters

• 4.75 meters

The area of a circle is 50.24 square meters. Determine the radius using 3.14 for π.

• 8 meters

• 9 meters

• 6 meters

• 4 meters

A circular rug covers 153.86 square inches. What is the radius using 3.14 for π?

• 14 inches

• 21 inches

• 49 inches

• 7 inches

The outside of a circle is 15.7 meters. Determine the diameter. Use 3.14 for π.

• 5 m

• 10 m

• 15 m

• 20 m

Find the value of π to the nearest hundredth.

• 3.14

• 3.15

• 3.41

• 3.04

A pizza is measured in diameter. If a large measures 15 inches across, then how many square inches of pizza are in a large?

• 153.86 in²

• 176.625 in²

• 94.2 in²

• 47.1 in²