English

Find the Volume of a Sphere Whose Radius Is 10.5 Cm . - Mathematics

Advertisements
Advertisements

Question

Find the volume of a sphere whose radius is 10.5 cm .

Solution

Radius (r) = 10.5cm

Volume `= 4/3πr^3=4/3×22/7×(10.5)^3=4851cm^3`

shaalaa.com
  Is there an error in this question or solution?
Chapter 21: Surface Areas and Volume of a Sphere - Exercise 21.2 [Page 20]

APPEARS IN

RD Sharma Mathematics [English] Class 9
Chapter 21 Surface Areas and Volume of a Sphere
Exercise 21.2 | Q 1.3 | Page 20

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

How many litres of milk can a hemispherical bowl of diameter 10.5 cm hold?

`["Assume "pi=22/7]`

 


A hemispherical tank is made up of an iron sheet 1 cm thick. If the inner radius is 1 m, then find the volume of the iron used to make the tank.

`["Assume "pi=22/7]`

 


A hemispherical bowl is made of steel 0.25 cm thick. The inside radius of the bowl is 5 cm. Find the volume of steel used in making the bowl.


A cylindrical jar of radius 6 cm contains oil. Iron spheres each of radius 1 .5 cm are immersed in the oil. How many spheres are necessary to raise the level of the oil by two centimetres?


A measuring jar of internal diameter 10 cm is partially filled with water. Four equal spherical balls of diameter 2 cm each are dropped in it and they sink down in water completely. What will be the change in the level of water in the jar?


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 metallic sphere of radius 10.5 cm is melted and thus recast into small cones, each of radius 3.5 cm and height 3 cm. Find how many cones are obtained.


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.


A cube of side 4 cm contains a sphere touching its sides. Find the volume of the gap in between.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×