Area and Circumference of Circles

Front

What is the area formula for circles?

Back

A = π r²

Front

What is the distance around a circle?

Back

Circumference

Front

The diameter of a circle is:

Back

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

Front

What is the radius of this circle?

Back

9

Front

What is the diameter of this circle?

Back

18

Front

What is the diameter of this circle?

Back

7

Front

Formula for circumference of a circle given the diameter?

Back

C = πd

Front

π =

Back

3.14

Front

A

Back

Radios

Front

B

Back

Diameter