Calculate surface area of round pool 1.5' deep X 8' diameter?

Answer 1

The area of a circular surface uses the formula pi*the radius squared.

So for your question the radius is half the diameter or 4 feet

Pi is basically 3.14

3.14*4*4=50.24 square feet.

The depth of the water does not apply

But if your looking for the volumn

you multiply the area*depth or 50.24*1.5 = 75.36 cu.ft.

To calculate the number of gallons multiply volumn*7.48 = 563.73 gal.