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I'm not completely sure what a "2.5 inch circle" is.

Is that the distance all the way across the circle (diameter), or is it

the distance from the center of the circle to its curve (radius) ?

If diameter = 2.5 inches, then area = 4.909 square inches

If radius = 2.5 inches, then area = 19.635 square inches

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Q: How many square inches in a 2.5 inch circle?

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Related questions

A 1.25-inch diameter circle contains 1.227 square inches.

The area of a circle with an 8 inch diameter is approximately 50.27 square inches.

A 4.75-inch diameter circle contains 17.72 square inches.

The area of a 3-inch diameter circle is about 7.068 square inches.

19.63 square inches are in the area of a 5-inch diameter circle.

Area of circle in square inches = pi*radius squared

Area of circle is pi*radius*radius. hence area of 1.5 inch circle is 7.065 square inches.

Area of a circle = pi*radius2 inches

There are 100*pi square inches in a 20 inch diameter circle

70.9 square inches.

Approximately 7.068 square inches.

That would depend on what you mean by "five inch circle".

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