Area and Circumference of a circle

What is the radius of this circle?

• 18 in

• 10 in

• 9 in

• 8 in

What is the diameter of this circle?

• 3.5 m

• 3 m

• 5 m

• 7 m

If the diameter of a circle is 50 yards, the radius is _____

• 100 yards
• 25 yards
• 150 yards
• 15 yards

Tags

CCSS.7.G.B.4

If the radius of a circle is 12.5 meters, the diameter is ____

• 6.25 meters
• 125 meters
• 25 meters
• 50 meters

Tags

CCSS.7.G.B.4

What does "circumference" mean?

• Space a circle takes up
• Distance around a circle
• Line from one side of a circle to another
• Line from center of circle to side

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.CO.A.1

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

What formula is used to find the space 
"inside" a flat object?

• Circumference 
• Surface Area
• Area
• Volume

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.GPE.B.7

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

• Area
• Surface area
• Circumference
• Volume

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.CO.A.1

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