Circumference and Area of a Circle

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

Radius 6 cm
What is the diameter? 

• 36 cm
• 12 cm
• 6 cm
• 3 cm 

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 space 
"inside" a flat object?

• Circumference 
• Surface Area
• Area
• Volume

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

• Area
• Surface area
• Circumference
• Volume

Radius 5 in
Find the area of the circle.

• 15.7 inches²
• 31.4 inches²
• 314 inches²
• 78.5 inches²

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

A circle pool has a radius of 7.5 ft. Monica wants to know how many ft of a pool cover she needs to buy?

• 23.55 ft²
• 176.63 ft²
• 47.1 ft²
• 706.5 ft²

Tags

CCSS.7.G.B.4

Ray wants to build a fence around his circular garden outside. The garden has a radius of 6 ft. How many feet of fencing does he need?

• 37.68 ft
• 18.84 ft
• 113.04 ft
• 452.16 ft

Tags

CCSS.7.G.B.4