A circle that has an area of 78.5 square feet has a diameter of 10 feet.
The area of a circle that has a 10 ft diameter is: 78.54 square feet.
78.5 square feet.
78.5 square feet.
There are 10 linear feet in a 10 foot diameter circle.
Diameter = 10/pi = 3.183098862 feet
The area of a circle with a diameter of 10 centimeters is: 78.54 cm2
The formula for circumference is 2 x pi x radius. For a circle of 10 feet, the cirumference would be 62.8 feet. The formula for area is pi x r2. For a circle of 10 feet, the radius would be 314.16 ft.
Area = (pi) R2 = (pi) (1/2 diameter)2 = 25 pi = 78.54square feet (rounded)
Area of outer circle minus area of inner circle: 132.7322896 - 78.53981634 = 54.19247327 square feet
The area of a circle is computed by the formula A = pi * r2 (r is the radius of the circle)For a 20 foot circle, the radius is 10 feet and the area is 314.16 square feet.
The circumference of a circle if the diameter is 10 feet long is: Pi x 10 (about 31.416).