Questions of Circles

A circular railroad sign has a diameter of 30 inches. Which measurement is closest to the area of the sign in square inches?

• 94.2 sq. in.

• 188.4 sq. in.

• 706.5 sq. in.

• 286.6 sq. in.

Tags

CCSS.7.G.B.4

A group of students stood in a circle to play a game. The circle had a diameter of 22 meters. which measurement is the closest to the circumference of the circle in meters?

• 34.54 m

• 1519.76 m

• 379.94 m

• 69.08 m

Tags

CCSS.7.G.B.4

A circular tablecloth has a radius of 2.5 feet. Kyle is sewing a piece of ribbon around the edge of the tablecloth. If Kyle has exactly enough ribbon, which measurement if closest to the length of the piece of ribbon in feet?

• 7.85 ft

• 15.7 ft

• 19.63 ft

• 31.4 ft

Tags

CCSS.7.G.B.4

A rotating lawn sprinkler sprays water in a circular area of grass. The diameter of the circular area of grass is 16 ft. Which measurement is closest to the area in square feet that this sprinkler sprays with water?

• 100.48 sq. ft

• 50.24 sq. ft

• 200.96 sq. ft

• 803.84 sq. ft

Tags

CCSS.7.G.B.4

What is the area of the shaded portion of the circle?

• 50.24

• 20.24

• 80.24

• 80.24

What decimal & percent represent the number of circles? (Remember to make this a fraction first.)

• 0.2; 2%

• 0.125; 12.5%

• 0.8; 80%

• 0.25; 25%

Michaela will cut circles from 6 sheets of construction paper. If she uses 1/4 sheet for each circle, what is the maximum number of circles she can make?

• 12

• 4

• 6

• 24

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

What is the ratio of blue circles to red circles? Choose two.

• 6 to 5

• 6:5

• 5 to 6

• 5:6

• 4:5

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2