How many square feet are there in a circle with a diameter of 45 feet?

diameter = 45 feet

Radius = 45/2 = 22.5 feet

Area = π * r^2

= 3.14 * (22.5)^2

= 3.14 * 506.25

= 1589.625 square feet

Hence there are 1589.625 square feet in the circle.

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