This article was originally published with the title “ How to Cut a Piece of Leather which will Exactly fit a Cone Drum ” in Scientific American Magazine Vol. 13 No. 36 (May 1858), p. 286 doi ...

A simple guide on how to prove the volume of a cone is ⅓ height × ... Keeping the compass at this width, draw a circle with it in the middle of the card. Use the scissors to cut out the ...

STEP 4: Fill the cone three times in total and empty into the glass. Three cones of water should fill the glass to the top. The glass is a cylinder with volume base x height.