Without depth, the circle is a flat figure without volume ... zero cubic units.
Assuming the 28 feet refers to the diameter of the circle, the answer is 1231.5 cubic feet, approx.
1.963 cubic feet
13.1 cubic yards, approx.
Assuming the dimensions of the square pan is 8 by 8 by 2, the volume is: 8 x 8 x 2 = 128 cubic inches Volume of circle pan is: pi × r2 × h where pi is 3.14, r is half the diameter or 4 inches and h = 2 3.14 x 4 x 4 x 2 = 100.48 cubic inches
22/7x6x6x6 cubic inches
volume=pir2h=3.1416x92x18=4580 cubic inches 4580x0.0173 quarts/cubic inch=79 quarts
29.45 cubic feet or 183.45 US gallons.
33.5 cubic feet.
Diameter = 26 feet so Radius = 13 feet Then volume = π*r2*h where h = 4 inches = 1/3 feet So V = 176.98 cu feet (to 2 dp)
It depends upon whether the 24' is the radius, diameter or circumference.
The answer to this question will require some simple dimensional analysis and geometry. Assuming that he pool is a round above ground pool, 18 feet in diameter and 48 inches deep you first need to calculate the area of the swimming pool in square inches and then multiply by the depth in inches to get the volume in cubic inches: The pool is an 18 foot diameter circle. The diameter in inches of the 18 foot pool is 216 inches (18 feet x 12 inches / foot) The area of a circle = pi (3.1415) x radius x radius The radius = 1/2 of the diameter The area of an 18 foot diameter pool in square inches is: 3.1415 * 108 inches * 108 inches = 36643.5 square inches The volume in cubic inches of an 18 foot diameter pool is: 36643.5 square inches x 48 inches = 1758890 cubic inches. There are 231 cubic inches in one gallon so the volume of an 18 foot diameter, 48 inch deep pool is: 1758890 / 231 = 7,614 gallons If it is a square or rectangular pool simply multiply the length x the width x the average depth.
Assuming it is 9 INCHES deep, Vol = pi*r2*h = pi*(d2/4)*h = 19113 cubic inches (approx).