Write whether True or False and justify your answer

A cylinder and a right circular cone are having the same base and same height. The volume of the cylinder is three times the volume of the cone.

According to the question,

Let diameter of cylinder = 2r, then diameter of cone = 2r


radius of cylinder = 2r/2 = r, and radius of cone = 2r/2 = r


Let height of cylinder = h, then height of cone = h


Now, volume of cylinder = πr2h …(i) [by using the above values]


And volume of cone = 1/3 πr2h


Or


Volume of cone = 1/3 (πr2h) = 1/3 (Volume of cylinder) [by equation (i)]


Volume of cone = 1/3 (Volume of cylinder)


Volume of cylinder = 3 × Volume of cone


Thus, the volume of cylinder is three times the volume of cone.


Hence, it true.


6