18 inches
All depends what you mean by 18 inches, is that the circumference, the diameter or the radius
The circumference of a circle is calculated using the formula ( C = \pi d ), where ( d ) is the diameter. For an 18-inch diameter, the circumference is approximately ( C = \pi \times 18 \approx 56.55 ) inches. Rounded to the nearest inch, the circumference is 57 inches.
A circle with a radius of 18 inches has an area of 1,017.88 square inches.
84.16 US gallons
18 inches
All depends what you mean by 18 inches, is that the circumference, the diameter or the radius
The area of a 18-inch diameter circle is: 254.5 square inches.
The circumference of a circle with an 18-inch diameter is about 56.55 inches. (C = d x Pi)
Circumference of circle: 18*pi = 56.549 inches rounded up to 3 decimal places
Area of circle with 18 inch diameter = pi*(18/2)2 = 81*pi sq inches Area of circle with 9.6 inch diameter = pi*(9.6/2)2 = 23.04*pi sq inches Difference = (81 - 23.04)*pi = 182.09 sq inches.
Area = pi*9*9 square inches
The circumference of a circle is calculated using the formula ( C = \pi d ), where ( d ) is the diameter. For an 18-inch diameter, the circumference is approximately ( C = \pi \times 18 \approx 56.55 ) inches. Rounded to the nearest inch, the circumference is 57 inches.
Area of 30 inch circle = pi*302 sq inches Area of 18 inch circle = pi*182 sq inches Difference = pi*(302 - 182) = 576*pi sq inches 1 sq foot = 1 ft*1 ft = 12 inches*12 inches = 144 sq inches so 576*pi sq inches = 576/144 *pi sq ft = 4*pi sq ft = 12.57 sq ft.
A circle with a diameter of 18 feet has a perimeter of 56.5 feet.
A circle with a radius of 18 inches has an area of 1,017.88 square inches.
84.16 US gallons