Area and circumference

Front

What is the diameter? Options: 8, 16, 10, 4

Back

16

Front

A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?

Back

c = 15π

Front

What is the area of this circle?

Back

1134.11

Front

Jayne's circular lollipop has a circumference of 25.12 inches. What is the diameter? Use π = 3.14.

Back

8 in.

Front

The radius is 8 inches. What is the circumference?

Back

50.24 inches

Front

The circumference is 62.8 inches. What is the radius?

Back

10 inches

Front

Randy’s circular garden has a radius of 1.5 feet. He wants to enclose the garden edging which costs $0.75 per foot. What is the total cost?

Back

$7.00

Front

What is π ?

Back

The ratio of the circumference of any circle to its diameter.

Front

A school’s art teacher designs a circular flower bed inside a rectangular sandbox. The sandbox is 6 feet wide and 10 feet long. How many square feet will there be for sand after the flower bed is installed? Use 3.14 for π.

Back

32 square feet

Front

Ferris wheel with a diameter of 80 meters: How far does a rider travel in three complete rotations?

Back

753.6 meters