The value of    when   is

When    and  , what is the value of  ?

What is the value of    when  ?

Ice cream is put into a waffle cone so it fills the cone to the top.
 

The volume, , of the cone is given by the rule  ,

where is the radius of the cone in centimetres and is the height in centimetres.

When    and   , the volume of the cone is closest to

The value of    can be calculated by using the rule  .

What is the value of    when  

What is the value of    when