Solve for Radius

Find the radius of a circle who's diameter is 40 ft.

• 40ft

• 80ft

• 20ft

• 45ft

A bicycle tire has a diameter of 27 inches. What is the radius of the tire?

• 729 inches

• 13.5 inches

• 81 inches

• 84.78 inches

What is the radius?

• 18

• 72

• 38

• 14

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

• Radius

• Diameter

What is the radius of this circle?

• 20

• 10

• 40

What is the radius?

• 18

• 72

• 38

• 14

What is the length of the radius of the circle?

Tags

CCSS.MATH.CONTENT.7.G.B.4

Determine the radius of the penny.

• 59.66 mm

• 9.5 mm

• 38 mm

• 119.32 mm

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.

• The radius is half of the diameter.

Given the diameter. What is the radius of the circle?

• 18 ft

• 72 ft

• 38 ft

• 14 ft