A heap of rice is in the form of a cone of base diameter 24 m and heig

1.	A heap of rice is in the form of a cone of base diameter 24 m and height 3.5 m. Findthe volume of the rice. How much canvas cloth is required to just cover the heap ?
Answer» Given, Radius r = 24/2 = 12 mHeight h = 3.5 m Volume of rice heap= 1/3pir^2h= 1/322/712123.5= 22412.5= 886= 528 m^3 Slant Height ll = 3.53.5 + 1212ll = 12.25 + 144 = 156.25l = 12.5 m Length of canvas cloth required= pirl= 22/712*12.5= 471.4 m^2

A heap of rice is in the form of a cone of base diameter 24 m and height 3.5 m. Findthe volume of the rice. How much canvas cloth is required to just cover the heap ?

Answer»

Given, Radius r = 24/2 = 12 mHeight h = 3.5 m

Volume of rice heap= 1/3*pi*r^2*h= 1/3*22/7*12*12*3.5= 22*4*12*.5= 88*6= 528 m^3

Slant Height l*l = 3.5*3.5 + 12*12l*l = 12.25 + 144 = 156.25l = 12.5 m

Length of canvas cloth required= pi*r*l= 22/7*12*12.5= 471.4 m^2