Area and Circumference of a Circle

Which best represents the circumference of a circle with a radius of 12 inches?

• 37.68 inches

• 75.36 inches

• 62.14 inches

• 27.14 inches

Tags

CCSS.7.G.B.4

Which best represents the area of a circle with a radius of 8 inches?

• 200.96 inches

• 50.24 inches

• 192.14 inches

• 31.4 inches

Tags

CCSS.7.G.B.4

• 19 units

• 13 units

• 36 units

• 18 units

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

Radius 4 inches
Find the circumference of the circle. 

• 25.12 in

• 12.56 in

• 50.24 in

• 200.96 in

Tags

CCSS.7.G.B.4

Diameter 13.5 in
Find the circumference of the circle.

• 84.79 in

• 42.39 in

• 21.195 in

• 572.265 in 

Tags

CCSS.7.G.B.4

What formula is this used for:
πr²

• Circumference 

• Area

• Surface Area

• Volume

Tags

CCSS.7.G.B.4

What formula is this used for:
πd

• Area

• Circumference 

• Surface Area

• Volume 

Tags

CCSS.7.G.B.4

Diameter 32 inches
What is the radius?

• 16 inches

• 64 inches

• 96 inches
  96 inches

• 16 ft 

Tags

CCSS.7.G.B.4

What formula is used to find the distance around a circle?

• Area

• Surface area

• Circumference

• Volume