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
πr?
or .
Since the area of the circle is the area of the square,
the volume of the cone equals
or
412
of the volume of the pyramid or ( 29(h) or arh.
# { 2n?m ) or
Cross section
o
the volume of the pyramid or
h
strah.
T
2r
2r
o ju the volume of the pyramid or ( Pem) or
arh.
o the volume of the pyramid or * (<2n?(n ) or
ar?h.