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Assuming that "1 inch round circle" refers to a circle whose circumference is 1 inch, its area is 51.34 sq mm.

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Q: How many Square mm in a 1 inch round circle?

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A 48-inch diameter circle has an area of: 12.57 square feet.

256*pi square inches Area of a circle = pi*radius2

452.16

There are: pi*1*1 = pi square inches

60 inch diameter = 2.5 ft radius.Area = pi*r2= 19.6 sq feet.

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12.5664 Sq.In.

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A circle with a 14 inch diameter has an area of 153.9 sq inches.

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

A 1.25-inch diameter circle contains 1.227 square inches.

A 4.75-inch diameter circle contains 17.72 square inches.

A 72-inch diameter circle has an area of: 28.3 square feet.

A 20-inch diameter circle contains: 314.16 square inches.

A 48-inch diameter circle has an area of: 12.57 square feet.

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

A 36-inch diameter circle has an area of: 1,017.9 square inches.* * * * *which is 7.07 square feet.

formula used is (pi)x(radius squared)= square inches (3.14)x(5x5)= 78.5 square inches