Circumference and Area of Circles

Front

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

Back

9.5 inches

Front

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

Back

20ft

Front

What is the circumference of this circle? Options: 3.14 cm, 37.68 cm, 24 cm, 68.4 cm

Back

37.68 cm

Front

Circumference of a circle with radius 12.5 mm

Back

78.5mm

Front

Circumference of a circle with radius 5 in terms of π?

Back

10 π

Front

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

Back

c = 15π

Front

Circumference

Back

Distance around a circle

Front

Area of a circle?

Back

78.5

Front

Back

12.31 m²

Front

What is the distance around a cookie with a radius of 5 inches?

Back

31.4 in