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:
Syllabus Sections
Key Formulas & Equations
Click Copy to duplicateVolume of Sphere
V = \frac{4}{3}\pi r^3
Volume capacity of sphere.
Surface Area of Sphere
A = 4\pi r^2
Total outer surface area of sphere.
Volume of Cone
V = \frac{1}{3}\pi r^2 h
Volume of right circular cone.
Related Formulas from Adjacent Chapters
Heron's Formula
A = \sqrt{s(s-a)(s-b)(s-c)}
[From Heron's Formula] Calculates triangle area using semi-perimeter s and sides a, b, c.