Q. 145.0( 6 Votes )
A sphere of diameter 15.6 cm is melted and cast into a right circular cone of height 31.2 cm. Find the diameter of the base of the cone.
When we convert any object into another shape the volume will remain same.
Radius of sphere =
Radius of cone = r cm
Volume of sphere = volume of cone
r2 = 60.84
r = 7.8cm
d = 2 × r = 2 × 7.8 =15.6 cm
Rate this question :
The volumes of the two spheres are in the ratio 64 : 27 and the sum of their radii is 7 cm. The difference of their total surface areas isRS Aggarwal & V Aggarwal - Mathematics
If the surface area of a sphere is then its volume isRS Aggarwal & V Aggarwal - Mathematics
The ratio of the total surface area of a sphere and a hemisphere of same radius isRD Sharma - Mathematics
The surface area of a sphere is Find its radius and volume.RS Aggarwal & V Aggarwal - Mathematics
The diameter of a sphere is 6 cm. It is melted and drawn into a wire of diameter 2 mm. Find the length of the wire.RS Aggarwal & V Aggarwal - Mathematics
How many lead shots, each 3 mm in diameter, can be made from a cuboid with dimensionsRS Aggarwal & V Aggarwal - Mathematics