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Circumference of Circle Worksheet

Objective: I know how to calculate the circumference of a circle.

The circumference of a circle is the distance around the circle.
The formula is πd or 2πr

Read the lesson on circumference of circle if you need to learn how to calculate the circumference of a circle.

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Find the circumference of the circle to the nearest tenth.
Use 3.14 for π.
(Remember to include the units in your answers.

diameter = 36 cm
circumference =

diameter = 76 in
circumference =

radius = 84 mm
circumference =

radius = 60 mm
circumference =

diameter = 64 in
circumference =

diameter = 13 ft
circumference =

radius = 74 cm
circumference =

diameter = 50 in
circumference =

radius = 3 ft
circumference =

radius = 73 mm
circumference =

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