Expert: Ahmed Salami - 10/28/2008

Question
A drinking glass is in the shape of a cylinder that is 60mm in diameter and 15cm tall. How many cubic centimeters of water will it hold?

Answer
Hi Jalisa,
The radius of the cylinder is
r = 60mm/2
 = 30mm
 = (30/10)cm
 = 3cm
We do this so as to have consistency with the units.
The height of the cylinder is
h = 15cm
The amount of cubic centimeters of water it will hold is the volume
of the cylinder
V = #r^2.h
where # is the constant pi
V = #(3^2).15
 = #(9).15
 = 135# cubic centimeters

Regards.