Pool Math

The other day I helped my dad measure our pool to see how heavy the water was.

First we figured out how big a circle it was and used a special number called PI to figure that out. We then saw how deep it was. Then we knew how much water was in it.

I couldn't weight the pool though so I took a bucket and figured out how much water was in the bucket with a calculator and the same math as the pool.

Then we figured out how many buckets of water were in the pool. Last I weighed the bucket and then we knew how heavy the pool water was. Pretty cool.