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

The radius of a circle is

Back

The measurement from the center of a circle to an edge of the circle.

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

A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference? Options: c = 15π, C = 2π15, c = 15 ÷ π, c = 15 π

Back

c = 15π

Front

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

Back

8 in.

Front

How can you calculate the radius if you are given the diameter? Options: Multiply the diameter by 2, Divide the diameter by 2, Add 2 to the diameter, Subtract 2 from the diameter

Back

Divide the diameter by 2

Front

What is the circumference of a circular rug with a diameter of 9 feet, rounded to the nearest tenth of a foot?

Back

28.3 feet

Front

A circular track with a diameter of 60 meters. Shaleah walked around the track 4 times. Approximately how many meters did she walk?

Back

754