Circumference & Area

A Circle has a radius of 4.  What is the circumference of the circle? (Best Choice)

• 4π or about 12.56
• 16π or about 50.24
• 2π or about 6.28
• 8π or about 25.12

Tags

CCSS.7.G.B.4

A Circle has a diameter of 10 centimeters.  What is the circumference of the circle? (Best Choice)

• 5π or about 15.7 cm
• 10π or about 31.4 cm
• 20π or about 62.8 cm
• 100π or about 314 cm 

Tags

CCSS.7.G.B.4

A circular window has a diameter of 24 inches.  A piece of metal is to go around the window for a frame. How long does the metal need to be? (Best Choice)

• 24π or about 75.36 in
• 12π or about 37.68 
• 576π or about 1,808.64 in
• 144π or about 452.16 in 

Tags

CCSS.7.G.B.4

A circular window has a diameter of 24 inches.  What is the area of the glass in the window ? (Best Choice)

• 24π or about 75.36 in²
• 12π or about 37.68 in²
• 576π or about 1,808.64 in²
• 144π or about 452.16 in² 

Tags

CCSS.7.G.B.4

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?

• 31.25 m²
• 29.55 m²
• 30.36 m²
• 28.26 m²

Tags

CCSS.7.G.B.4

Find the arc length.  Leave your answer in terms of π.

• 7/4π
• 7/2π
• 1/8π
• 45π

Tags

CCSS.HSG.C.B.5

what is the arc length

• 5.23
• 103
• 33.33
• 50

Tags

CCSS.HSG.C.B.5

What is the area of the shaded region? Round to the nearest hundredth.

• 1.26
• 452.39
• 113.10
• 40715.04

Tags

CCSS.HSG.C.B.5

Find the exact area of the shaded space.

• 36π units squared
• 48π units squared
• 157.82 units squared
• 10. 92 units squared

Tags

CCSS.HSG.C.B.5

Find the estimated area of the shaded area.

• 100.48 units squared
• 16.8 units squared
• 9.75 units squared
• 32 pi units squared

Tags

CCSS.HSG.C.B.5