Mathematics
A cone of height 7 cm and base radius 3 cm is carved from a rectangular block of wood 10 cm × 5 cm × 2 cm. The percentage of wood wasted is:
34%
46%
54%
66%
Related Questions
The diameters of two cones are equal. If their slant heights are in the ratio 5 : 4 the ratio of their curved surface areas is:
4 : 5
5 : 4
16 : 25
25 : 16
If the radius of the base of a cone is halved, keeping the height same, what is the ratio of the volume of the new cone to that of the original cone?
1 : 2
1 : 3
1 : 4
2 : 3
An edge of a cube measures 10 cm. If the largest possible right circular cone is cut out of this cube, then the volume of the cone is:
260 cm3
260.9 cm3
261.9 cm3
262.7 cm3
If the height of a cone is doubled, then its volume is increased by :
100%
200%
300%
400%