Question 277435
r = (y-3)cm
h = 7ycm
V=pir^2h
V=22/7*(y-3)^2*7y
V=22/7(y^2-6y+9)7y
V=22/7*7y(y^2-6y+9)
V=22y(y^2-6y+9) ans.