Example 7 - Chapter 9 Class 7 Perimeter and Area

Last updated at August 14, 2026 by

Example 7 - What is the circumference of a circle of diameter 10 cm - Examples

part 2 - Example 7 - Examples - Serial order wise - Chapter 9 Class 7 Perimeter and Area

Remove Ads
Teachoo ยท Class 7 Explore Class 7

Transcript

Example 7 What is the circumference of a circle of diameter 10 cm (Take ฯ€ = 3.14)?Diameter = 10 cm Radius = r = ๐ท๐‘–๐‘Ž๐‘š๐‘’๐‘ก๐‘’๐‘Ÿ/2 = 10/2 = 5 cm Circumference = 2๐œ‹r = 2 ร— 3.14 ร— 5 = 3.14 ร— 2 ร— 5 = 314/100 ร— 10 = 314/10 = 31.4 cm โˆด Circumference of circle is 31.4 cm

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.