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The area of a circle when the diameter is 30 inches is: 706.9 square inches.

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Q: What is the area of a circle when the diameter is thirty inches?

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The area of a circle with diameter of 16 inches is: 201.1 square inches.

The area of a circle with a diameter of 4 inches is: 12.57 square inches.

The area of a circle with a diameter of 9 inches is: 63.62 square inches.

A circle with a diameter of 12 inches has an area of ~113.1 square inches.

A circle with a diameter of 7 inches has an area of 38.48 square inches.

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1,074.665 square inches

Area = pi*d2/4 = 804.248 sq inches.

The area of a circle with diameter of 16 inches is: 201.1 square inches.

The area of a circle with a diameter of 4 inches is: 12.57 square inches.

The area of a circle with a diameter of 16 inches is: 201.1 square inches.

The area of a circle with a diameter of 9 inches is: 63.62 square inches.

The area of the circle if the diameter is 16 inches is: 201.1 square inches.

The area of a circle that has a diameter of 14 inches is: 153.9 square inches.

The area of a circle with a diameter of 75 inches is: 4,418 square inches.

The area of a circle with a diameter of 16 inches is: 201.1 square inches.

If the area of a circle is about 28 square inches the diameter of the circle is: about 6 inches (5.971).

If the area of a circle is 20 square inches the diameter is: 5.046 inches.