Solve Radius

What is the radius?

• 18

• 72

• 38

• 14

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

• Radius

• Diameter

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

• 40ft

• 80ft

• 20ft

• 45ft

If the radius of a circle is 10 feet, what is the diameter?

• 20 feet

• 5 feet

• 31.4 feet

• 62.8 feet

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

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

Given a diameter of 15 feet. Identify the formula to solve for the radius.

What is the line that goes from the center of a circle to any point on the circle?

• Diameter

• Circumference

• Chord

• Radius