![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
The ratio of the radii of two wheel is 2:5. What is the ratio of their circumferences ?
Given: The ratio of the radii of two-wheel is 2:5
To do: Find the ratio of their circumference.
Solution:
Let the two radii be $r_1,r_2$
$ r_1 : r_2 = 2 : 5$
Circumference of circle = 2πr
The ratio of their circumferences = $2πr_1 : 2πr_2$
= $2π (2) : 2π (5)$ [ Substitute the ratios of radii in formula]
= 2 : 5 [2π and 2π gets cancelled, since they are same]
So, the ratio of their circumferences = 2: 5
Advertisements