Math CentralQuandaries & Queries


Question from Justine, a parent:

This may be a really silly question but I am trying to work out what the possible dimension a pool may be if we have 20m length of wall of an above ground pool (laid out flat on ground)

We have been given a second hand above ground pool and we know it was in an oval configuration and we are just trying to get a guesstimate of the potential size it may be as the people couldn't tell us the size



The circumference of a circle is π times the diameter so if the pool is a in the shape of a circle then

π × diameter = 20 m


diameter = 20/π = 6.37 m.

That's the best I can do without further information. If it is an oval then it is longer then 6.37 m and it is less than 6.37 m across at the narrowest point.


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