Radius Diameter Circumference and Area

The distance from any point on the outside of a circle to the center of the circle is called what?

• Diameter

• Circumference

• Area

• Radius

The distance across a circle through the center is called what?

• Area

• Diameter

• Circumference

• Radius

The distance around the outside of a circle is called what?

• Perimeter

• Area

• Circumference

• Diameter

If the radius of a circle is 4 inches, what is the diameter?

• 2 inches

• 2 feet

• 4 inches

• 8 inches

Sally has car tire with a circumference of 75.36 ft. What is the radius of the car tire and what is the diameter? (Use 3.14 for pi)

• r=12 ft

• d=26 ft

• r=13 ft

• d=24 ft

If my circumference is 37.68cm, what is my diameter?

• 12 cm

• 118.3152 cm

• 6 cm

• 37.68 cm

What is the diameter of this circle?

• 6 m

• 6 cm

• 24 cm

• 24 m

What is the space that a circle covers called?

• Area

• Radius

• Circumference

• Diameter

What is the formula for the circumference of a circle?

If my radius is 10ft, what is my diameter?

• 20ft

• 5ft

• 31.4ft

• 62.8ft