The formula for the area of a circle is A = πr^2, where r is the radius of the circle. Since the diameter is twice the radius, we can find the radius by dividing the diameter by 2:
Radius = 10 ft / 2 = 5 ft
Now we can plug the radius into the formula:
A = π(5 ft)^2
A = π(25 ft^2)
A = 25π
To find the approximate area, we can use the approximation π ≈ 3.14:
A ≈ 25 * 3.14
A ≈ 78.5
Therefore, the area of the circle to the nearest whole number is 79 square feet.
The diameter of a circle is 10 ft. Find its area to the nearest whole number
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