A cone fits inside a square pyramid as shown. For every cross section, the ratio of the area of the circle to the
area of the square is
Tr?
or .
Since the area of the circle is the area of the square,
the volume of the cone equals
402
o the volume of the pyramid or
or
[2rcm) Larh.
( 2n?cm)) or
Cross section
o the volume of the pyramid or
h
rh.
o the volume of the pyramid or
( c2ropom) or
2r
2r
nrh.
o the volume of the pyramid or (20?m) or
arh.