Ex 11.2, 2 (iii) - Chapter 11 Class 9 Surface Areas and Volumes

Last updated at December 16, 2024 by

Ex 11.2, 2 (iii) - Find surface area of sphere with diameter 3.5 cm - Ex 11.2

 

Share on WhatsApp

🎉 Smart choice! You just saved 2+ minutes of ads and got straight to the good stuff. That's what being a Teachoo Black member is all about.

Transcript

Ex 11.2, 2 Assume = 22/7, unless stated otherwise. Find the surface area of a sphere of diameter: (iii) 3.5 cm Radius of sphere = r = /2 r = (3.5/2) cm = 1.75 cm Surface area of sphere = 4 r2 = (4 22/7 1.75 1.75)cm2 = 38.5 cm2

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo