Area and Circumference

Front

What is the formula for area of a circle?

Back

A = π × r²

Front

What is the formula for Circumference?

Back

C = π × d

Front

What is the radius of this circle? Options: 36 in, 18 in, 9 in, 8 in

Back

9 in

Front

What is the diameter of this circle? Options: 3.5 m, 3 m, 5 m, 7 m

Back

7 m

Front

Find the area of the circle below.

Back

28.26 cm²

Front

What is the circumference of this circle?

Back

37.68 cm

Front

Does this picture show the diameter or radius of a circle?

Back

Diameter

Front

Does this picture show the diameter or radius of a circle?

Back

Radius

Front

What is the diameter of a circle?

Back

a line through the center of a circle

Front

What number represents π? Options: 31.4, 4.13, 3.14, 34.1

Back

3.14