Circular Pools HLM
Circular Pools The formula: 3.14 x radius squared x average depth x 7.5 = volume (in gallons) The number 3.14 refers to pi, which is a mathematical constant. The radius is one-half the diameter. Measure the distance across the broadest part of the circle and divide it in half to get the radius. Squared means to be multiplied by itself, so you will multiply the radius by itself. For example, if you measure the radius as 5 feet, then multiply 5 feet by 5 feet to arrive at 25 feet. Use the hot tub to calculate the volume of a round container. We will do that hard part first. The diameter of the Jacuzzi is 10 feet. Half of that is 5 feet. Squared (multiplied by itself) means 5 feet times 5 feet equals 25 square feet. Knowing this, you can return to the formula: 3.14 x radius squared x average depth x 7.5 = volume (in gallons) 3.14 x 25 ft x 3 ft x 7.5 = 1766.25 gallons If you are measuring the capacity of a circular spa you will have to follow these steps. First, you will need to cal...