Diameter and Radius

The radius of this coin is 7 mm. What is the diameter?

• 3.5 mm

• 14 mm

• 21 mm

• 49 mm

Tags

CCSS.7.G.B.4

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

The diameter of a circle is:

• The measurement around the circle.

• The distance from an edge of a circle to another edge.

• The distance from the center of the circle to an edge of a circle

• The distance from an edge of a circle to another edge through the center. 

Tags

CCSS.HSG.C.A.2

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 diameter?

• 5 in

• 10 in

• 3.14 in

• 15.84 in

Tags

CCSS.7.G.B.4

Radius of this circle is ....

• A. 6 cm

• B. 6 m

• C. 24 cm

• D. 24 m

Tags

CCSS.7.G.B.4

Swimming from one side of this pool through the center to the other side is 12 feet. What is the radius of this pool?

• 32 ft

• 6 ft

• 4 ft

• 12 ft

Tags

CCSS.7.G.B.4

If I want to cut this pizza in half, the line would be 16 in long. How far do I need to cut if I just want a slice from the center?

• 32 in

• 4 in

• 12 in

• 8 in

Tags

CCSS.7.G.B.4

What is the circle's diameter?

• 5 cm

• 10 cm

• 20 cm

Tags

CCSS.7.G.B.4

What is the circle's radius?

• 3 m

• 6 m

• 12 m

Tags

CCSS.7.G.B.4