Advertisements
Advertisements
प्रश्न
Find the volume of a sphere whose radius is 3.5 cm.
उत्तर
Radius (r)= 3.5cm
∴ Volume = `(3.5)^3 × π × 4/3=4/3×22/7×(3.5)^3=179.666cm^3`
APPEARS IN
संबंधित प्रश्न
The front compound wall of a house is decorated by wooden spheres of diameter 21 cm, placed on small supports as shown in the given figure. Eight such spheres are used for this purpose, and are to be painted silver. Each support is a cylinder of radius 1.5 cm and height 7 cm and is to be painted black. Find the cost of paint required if silver paint costs 25 paise per cm2 and black paint costs 5 paise per cm2.
The diameter of a sphere is 6 cm. It is melted and drawn into a wire of diameter 0.2 cm. Find the length of the wire.
A hemisphere of lead of radius 7 cm is cast into a right circular cone of height 49 cm. Find the radius of the base.
A sphere, a cylinder and a cone have the same diameter. The height of the cylinder and also the cone are equal to the diameter of the sphere. Find the ratio of their volumes.
Find the radius of a sphere if its volume is 904.32 cubic cm. (π = 3.14)
A solid sphere and a solid hemisphere have an equal total surface area. Prove that the ratio of their volume is `3sqrt(3):4`
The outer and the inner surface areas of a spherical copper shell are 576π cm2 and 324π cm2 respectively. Find the volume of the material required to make the shell
Find the maximum volume of a cone that can be carved out of a solid hemisphere of radius r units.
If a sphere is inscribed in a cube, then the ratio of the volume of the cube to the volume of the sphere will be 6 : π.
The volumes of the two spheres are in the ratio 64 : 27. Find the ratio of their surface areas.
