top is smaller so volume gotta be less than a cylinder
tu understand yu gotta no intergral...
yu integrate the area av a horizontal slies from bottom tu top (or top tu botton)
get bunch av thin slieses & add up volume av all the slieses
zampel...if hav square prymid, all the slieses=square so area= side*side
but side length vary from base leng at bottom tu zero at top
side leng=konstant*hite, so area=konstant*x*x...integrate x^2 & yu get (1/3)x^3