Assuming that a 100 ft circle is one with a diameter of 100 ft (ie radius of 50 feet),
area = pi*502 = 1963.5 sq feet
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Area of a circle is pi*radius^2. So if the radius is measured in feet, the area (or the square footage) of a half circle is: (pi*r^2)/2
Area of the circle in square feet = pi times radius squared
10,000 square feet.
To find the square footage of a circle, you first need to calculate the area of the circle using the formula A = πr^2, where r is the radius of the circle. In this case, the radius is half of the diameter, so the radius is 2 feet. Substituting the radius into the formula, we get A = π(2)^2 = 4π square feet. Therefore, the square footage of a 4-foot circle is approximately 12.57 square feet.
if the units for the 100 are in feet then 10,000 square feet