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Classes IX & X Mathematics

Chapter 11: Surface Areas and Volumes

Standard NCERT & CBSE aligned study curriculum. Master concepts, track accuracy, revise weak areas, and challenge yourself with 9 customized practice modes.

Class Syllabus Selection

This topic is taught in multiple grades. Switch classes to see specific curriculum details:

Example 1

Volume of a Sphere

Find the volume of a sphere with radius 3 cm. (Use pi = 22/7)
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Calculation Steps:

  1. 1Identify radius: r = 3 cm.
  2. 2Apply formula: V = (4/3) * pi * r³.
  3. 3Calculation: (4/3) * (22/7) * 3 * 3 * 3 = 4 * (22/7) * 9 = 792/7 ≈ 113.14 cubic cm.
Solution113.14 cubic cm