RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 21. Surface Area and Volume of a Sphere

Subject: Mathematics - Class 9th

Q. No. 12 of Exercise 21.2

Listen NCERT Audio Books to boost your productivity and retention power by 2X.

12

A cylinder whose height is two thirds of its diameter, has the same volume as a sphere of radius 4 cm. Calculate the radius of the base of the cylinder.

Volume of a sphere = (4/3)πr3


Volume of a cylinder = πr2h


Given, cylinder whose height is two thirds of its diameter, has the same volume as a sphere of radius 4 cm.


h = (2/3) × 2r = 4r/3


Thus,


r = 4 cm


Chapter Exercises

More Exercise Questions