Area and Circumference of Circles

Area and Circumference of Circles

By Jordan Feierabend

The area of a circle is equal to the radius of the circle squared times pi.

​​Area Formula

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The circumference of a circle is equal to the diameter of the circle times pi or the radius times two multiplied by pi.

​​Circumference Formula

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Find the area of the circle. Leave your answer in terms of pi.

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Find the area of the circle. Round your answer to the nearest hundredth.

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Find the area for the circle. Leave your answer in terms of pi.

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Find the area for the circle. Round your answer to the nearest tenth.

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Find the area for the circle. Leave your answer in terms of pi.

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Find the area for the circle. Round your answer to the nearest tenth.

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Find the area for the circle. Leave your answer in terms of pi.

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Find the area for the circle. Round your answer to the nearest hundredth.

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Find the circumference for the circle. Leave your answer in terms of pi.

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Find the circumference for the circle. Round your answer to the nearest hundredth.

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Find the circumference for the circle. Leave your answer in terms of pi.

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Find the circumference for the circle. Round your answer to the nearest hundredth.

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Find the circumference for the circle. Leave your answer in terms of pi.

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Find the circumference for the circle. Round your answer to the nearest hundredth.

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Find the circumference for the circle. Leave your answer in terms of pi.

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Find the circumference for the circle. Round you answer to the nearest hundredth.

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Find the diameter of a circle with a circumference of 65.97 meters.

Use $$C=\pi d$$   to find the diameter of the circle.

What is the diameter of the circle? Round your answer to the nearest whole number.

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Find the radius of a circle with a circumference of 21.99 meters.

Use $$C=2\pi r$$  to find the radius of the circle.

What is the radius of the circle? Round your answer to the nearest tenth.

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Find the radius of a circle with a circumference of 35 $$\pi$$  meters.

Use $$C=2\pi r$$  to find the radius of the circle.

What is the radius of the circle? Round your answer to the nearest tenth.

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Find the radius of a circle with an area of 380.13 square inches.

Use $$A=\pi r^2$$  to find the radius of the circle.

What is the radius of the circle? Round your answer to the whole number.

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Find the diameter of a circle with an area of 615.75 centimeters squared.

Use $$A=\pi r^2$$  to find the diameter of the circle.

What is the diameter of the circle? Round your answer to the whole number.

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Find the diameter of a circle with an area of 90.25 $$\pi$$  centimeters squared.

Use $$A=\pi r^2$$  to find the diameter of the circle.

What is the diameter of the circle? Round your answer to the whole number.

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Find the area of a circle with a circumference of $$26\pi$$   feet. Round your answer to the nearest hundredth.

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Find the circumference of a circle with an area of $$289\pi$$   feet. Round your answer to the nearest hundredth.

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Find the circumference of a circle with an area of 113.1 inches squared. Round your answer to the nearest tenth.

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Find the area of a circle with a circumference of 131.95 meters. Round your answer to the nearest hundredth.

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Find the area of a circle with a circumference of 18.84 meters. Round your answer to the nearest hundredth.

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Find the circumference of a circle with an area of 1,809.56 square centimeters. Round your answer to the nearest tenth.