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(100 pi) square inches is.
using area = pi *r^2 we get: 314.1592654
The area of a circle with a diameter of 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.