Area and Circumference 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

A cruise ship has a large, circular window with a diameter of 6 meters. What is the window's area?

Back

28.26 m²

Front

Find the circumference (to the nearest whole number)

Back

88 in

Front

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

Back

c = 15π

Front

Area of the circle?

Back

1519.76

Front

A pizza parlor has a large metal pizza for a sign with a diameter of 6 feet. What is the area of the sign?

Back

28.3 ft²

Front

A circle has a diameter of 22 meters. What is the circumference of the circle in meters?

Back

69.08 m