Area and Circumference of Circles 2

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

• 34.54 m

• 1,519.76 m

• 379.94 m

• 69.08 m

A pizza parlor has a large metal pizza for a sign. The sign has a diameter of 6 feet. Which of the following best represents the area of the sign?

• 28.3 ft²

• 113 ft²

• 18.84 ft²

• 16 ft²

Tags

CCSS.HSG.GMD.A.1

What is the formula for area of a circle?

• πr²

• 2πr

• πd

• π7

Tags

CCSS.HSG.GMD.A.1

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 is 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, as shown in the picture. The diameter of the circular area of grass is 16 ft. What is the area?

• 100.48 ft

• 50.24 ft

• 200.96 ft

• 803.84 ft

Tags

CCSS.6.G.A.1

The length around the outside of a circle is what?

• circumference

• radius

• diameter

• angle

Tags

CCSS.HSG.C.B.5

CCSS.HSG.GMD.A.1

If my diameter is 19 inches, what is my radius?

• 38 inches
• 9.5 inches
• 59.66 inches
• 119.32 inches

Tags

CCSS.7.G.B.4

If my radius is 10ft, what is my diameter?

• 20ft
• 5ft
• 31.4ft
• 62.8ft

Tags

CCSS.7.G.B.4

what is the circumference of this circle ?

• 3.14 cm 
• 37.68 cm
• 24 cm
• 68.4 cm

Tags

CCSS.7.G.B.4

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

• 10.5 ft
• 42 ft
• 65.94 ft
• 131.95 ft

Tags

CCSS.7.G.B.4