Radius Diameter Circumference Area of Circles

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. 

The circumference of a circle is

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

• The measurement around the circle

• The measurement from an edge of a circle to another edge going through the center

• The measurement from the center of the circle to an edge of the circle

What is the distance around a circle?

• Circumference

• Area

• Diameter

• Radius

What is the diameter of this circle?

• 3.5

• 3

• 5

• 7

True or False: The radius goes half way across the circle

• False

• True

To find the circumference of a circle, you must multiply the ________________ by 3.14.

• circumference

• area

• radius

• diameter

What is the diameter?

• 5 in

• 10 in

• 3.14 in

• 15.84 in

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

• 20 ft

• 5 ft

• 31.4 ft

• 62.8 ft

What is the circumference of this circle ?

• 3.14 cm

• 37.68 cm

• 24 cm

• 68.4 cm

How many feet around is the pool?

• 10.5 ft

• 42 ft

• 65.94 ft

• 131.95 ft