Circles Vocab, Radius, & Diameter

Front

What is the name for the distance around a circle?

Back

Circumference

Front

The radius of a circle is

Back

The measurement from the center of a circle to an edge of the circle.

Front

What is the diameter of a circle?

Back

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

Front

What is the diameter?

Back

16

Front

What is the radius? Options: 18, 72, 38, 14

Back

18

Front

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

Back

Radius

Front

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

Back

Diameter

Front

What is the diameter of a circle with a radius of 5.5 cm?

Back

11 cm

Front

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

Back

20ft

Front

If my diameter is 19 inches, what is my radius?

Back

9.5 inches