Circumference and Area of a Circle

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

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

Tags

CCSS.HSG.GMD.A.1

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

The radius of a circle is

• The measurement from the center of a circle to an edge of the circle.
• The measurement around the circle
• The measurement from and edge of the circle to another edge through the center
• A line perpendicular to the diameter of the circle

What is the area of this circle?

• 1385.44
• 2142.12
• 5541.77
• 1289.12

What is the area of this circle?

• 163.2
• 15.3
• 124.2
• 113.1

Does this picture show the diameter or radius of a circle?

• Diameter
• Radius

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

Steven purchases a bowl. The diameter of the
bowl is 14 cm. What is the distance around the bowl?

• 21.98 cm
• 43.98 cm
• 87.96 cm
• 7 cm

What formula is this used for:
πr²

• Circumference 
• Area
• Surface Area
• Volume