12. Find the volume of the largest right circular cone that can be cut

1.	12. Find the volume of the largest right circular cone that can be cut out of a cube whoseedge is 18 cm.
Answer» A Cube whose all sides (l=b=h) are equal .So the largest cone we can cut from it will be 21 cm of diameter and also same height . then : volume of cone =1/3πr^2h 1/3×(22/7)×(18/2)×(18/2)×18=1527.4 Ans . find the surface area of achalk

12. Find the volume of the largest right circular cone that can be cut out of a cube whoseedge is 18 cm.

Answer»

A Cube whose all sides (l=b=h) are equal .So the largest cone we can cut from it will be 21 cm of diameter and also same height .

then : volume of cone =1/3πr^2h

1/3×(22/7)×(18/2)×(18/2)×18=1527.4 Ans

find the surface area of achalk