A circle with a radius of 9 feet has an area of 254.47 square feet.
The area of a circle that has a 10 ft diameter is: 78.54 square feet.
About 1,184.43 square feet.
If the diameter is 80 ft then the area is 5026.54 sq ft
9 ft by 9 ft = 81 square feet 81 square feet = 7.52515 square meters.
A circle with a radius of 9 feet has an area of 254.47 square feet.
area of circle = pi x radius squared where pi = 3.1416 radius = diameter/2 = 18/2 = 9 ft area = 3.1416 x 9 x 9 sq ft = 254 sq ft
The circle's radius is 1.5/2 = 0.75 ft = 9 inches The area of the circle is (pi) times (radius)2 = (pi) x (9)2 = 254.469 square inches (rounded)
the circumfrence of a circle is pi times it's radius squared.
The square has sides of 3*sqrt(2) = 4.2426 feet. [Assuming 12 ft circle refers to its diameter.]
If the diameter is 18 ft then the radius is 9 ft = 3 yards. Then the area is pi*r2 = 28.27 sq yards.
The base of the pool is a circle with a diameter of 18 ft. The radius is 9 ft. The area of the circle is (pi) times (R2) = 81pi = 254.47 square feet (rounded to 2 decimal places))
The area of a circle is pi*(radius)^2. If the 8 ft is the diameter, the area is pi*(4 ft)^2~=50.27 ft^2 (ft^2 is square feet)
Area of a circle = pi*radius2 measured in square feet
Knowing that the area of a circle is its radius squared times Pi, the area of a 10 ft radius circle is 100*Pi square ft, or about 314 square feet.
The area of a circle that has a 10 ft diameter is: 78.54 square feet.
The area of a circle with a 13 ft diameter is: 132.7 square feet.