Hi,

The two facts you need to know about the measurement units are that there are 2.54 centimeters in an inch and that there arre 1000 cubic centimeters in a litre.

Since you menton the diameter of the pool I am going to assume that it is circular. The volume then is

pi r² h

where r is the radius, h is the depth and pi is 3.1416.

First express the radius and depth in centimeters. The depth is 35 inches which is 35 2.54 centimeters and the radius is 8 12 2.54 centimeters.Thus the volume is

pi (8 12 2.54)² (35 2.54) = 16 605 866 cubic centimeters

which is

16 606 litres.

Cheers,
Penny

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