Find the Volume of a Sphere Whose Radius Is 7 cm. - Mathematics

Advertisements
Advertisements

Find the volume of a sphere whose radius is 7 cm.

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

 

Advertisements

Solution

Radius of sphere = 7 cm

`"Volume of sphere "= 4/3pir^3`

`=[4/3xx22/7xx(7)^2]cm^3`

`=(4312/3)cm^3`

`=1437 1/3 cm^3`

Therefore, the volume of the sphere is `1437 1/3 cm^3`

 

  Is there an error in this question or solution?
Chapter 13: Surface Area and Volumes - Exercise 13.8 [Page 236]

APPEARS IN

NCERT Mathematics Class 9
Chapter 13 Surface Area and Volumes
Exercise 13.8 | Q 1.1 | Page 236

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Find the amount of water displaced by a solid spherical ball of diameter 28 cm.

`["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 shopkeeper has one laddoo of radius 5 cm. With the same material, how many laddoos of radius 2.5 cm can be made?.


A sphere of radius 5 cm is immersed in water filled in a cylinder, the level of water rises `5/3`cm. Find the radius of the cylinder.


 A cone and a hemisphere have equal bases and equal volumes. Find the ratio of their heights.


The diameter of a coper sphere is 18 cm. The sphere is melted and is drawn into a long wire of uniform circular cross-section. If the length of the wire is 108 m, find its diameter.


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 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.


Volume of a hemisphere is 18000 π cubic cm. Find its diameter.


Find the radius of a sphere if its volume is 904.32 cubic cm. (π = 3.14)


If the ratio of radii of two spheres is 4 : 7, find the ratio of their volumes.


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


A spherical ball of radius r1 units is melted to make 8 new identical balls each of radius r2 units. Then r1 : ris


The volume (in cm3) of the greatest sphere that can be cut off from a cylindrical log of wood of base radius 1 cm and height 5 cm is


A hemispherical tank of radius 1.75 m is full of water. It is connected with a pipe which empties the tank at the rate of 7 litres per second. How much time will it take to empty the tank completely?


Find the maximum volume of a cone that can be carved out of a solid hemisphere of radius r units.


A hemispherical hollow bowl has material of volume cubic `(436π)/3` cubic cm. Its external diameter is 14 cm. Find its thickness


Find the amount of water displaced by a solid spherical ball of diameter 4.2 cm, when it is completely immersed in water.


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


Share
Notifications



      Forgot password?
Use app×