Example 4 - Chapter 11 Class 9 Surface Areas and Volumes

Last updated at August 11, 2026 by

Example 4 - Find surface area of a sphere of radius 7 cm - Examples

 

Remove Ads
Teachoo · Class 9 Explore Class 9

Transcript

Example 4 Find the surface area of a sphere of radius 7 cm. Given r = 7cm Surface Area of sphere = 4πr2 = 4 × 22/7 × 7 × 7 cm2 = 4 × 22× 1 × 7 cm2 = 616 cm2

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.