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Circumference of a Circle
Round your answer to the nearest tenth.

Type your answer into the textbox to the right of each problem.
What is the circumference of a circle with a radius of 8 units?
What is the circumference of a circle with a radius of 4 units?
What is the circumference of a circle with a radius of 5 units?
What is the circumference of a circle with a radius of 7 units?
What is the circumference of a circle with a radius of 9 units?

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