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19.63 square inches are in the area of a 5-inch diameter circle.
The area of a circle with a 5-inch diameter is: 19.63 square inches.
Area of circle using 3.14 for pi: 3.14*5^2 = 78.5 square inches
The area of a circle is pi × r2. pi = 3.141592653589793 5 feet = 60 inches. The radius is half the diameter so the radius is 30 inches. If you plug 30 inches into the formula you get the answer of 2827.4333882308138 inches for the area of the circle.
Area of a circle = (pi) x (radius)2 Radius = 1/2 the diameter = 5 inches Area = (pi) x (5)2 = 25 pi = 78.54 square inches (rounded)
Using 3.14 as Pi the area of circle is: 78.5
The area of the circle is 1,256.6 square inches.
Area = pi R2 = 25 pi = 78.54 square inches(rounded)
Circumference = 31.4 inches, approx. Area = 78.5 square inches, approx.
19.63 square inches.
6.25PI
Divide the area of the sector by 360 and multiply it to the area. The area of the sector is 5 square inches.