Mathematics
The radius and the height of a cone are in the ratio 2 : 1. The ratio between the volumes of a sphere and this cone (both having equal radii) is :
1 : 4
4 : 1
8 : 1
1 : 8
Related Questions
A cone and a sphere have equal volumes. Their radii are also equal each being 10 cm; the height of the cone is :
70 cm
40 cm
50 cm
20 cm
A sphere and a cone have equal volumes and equal radii. The ratio between the radius and height of the cone is :
3 : 4
4 : 3
4 : 1
1 : 4
A solid metallic cylinder is melted and formed into identical solid cones each having same radius and same height as that of the cylinder. The number of cones formed is :
3
6
9
2
A solid metallic cone of radius 10 cm and height 12 cm is melted to form a wire of uniform cross-section 1 cm2. The length of wire formed is :
40 × π cm
4 × π m
400 × π m
2 × π m