Ex 5.2 NCERT Solutions - Introduction to Euclid’s Geometry Class 9 Notes | EduRev

Class 9 Mathematics by Full Circle

Created by: Full Circle

Class 9 : Ex 5.2 NCERT Solutions - Introduction to Euclid’s Geometry Class 9 Notes | EduRev

The document Ex 5.2 NCERT Solutions - Introduction to Euclid’s Geometry Class 9 Notes | EduRev is a part of the Class 9 Course Class 9 Mathematics by Full Circle.
All you need of Class 9 at this link: Class 9

Question 1. How would you rewrite Euclid’s fifth postulate so that it would be easier to understand?
Solution: We can have: “Two distinct intersecting lines cannot be parallel to the same line.”

Question 2. Does Euclid’s fifth postulate imply the existence of parallel lines? Explain.
Solution: Yes, If a straight line ‘l’ falls on two lines ‘m’ and ‘n’ such that sum of the interior angles on one side of l is two right angles, then by Euclid’s fifth postulate, the lines will not meet on this side of l. Also we know that the sum of the interior angles on the other side of the line l will be two right angles too. Thus, they will not meet on the other side also.
 

Ex 5.2 NCERT Solutions - Introduction to Euclid’s Geometry Class 9 Notes | EduRev

∴ The lines ‘m’ and ‘n’ never meet, i.e., they are parallel.

Share with a friend

Complete Syllabus of Class 9

Dynamic Test

Content Category

Related Searches

pdf

,

Exam

,

video lectures

,

ppt

,

shortcuts and tricks

,

study material

,

Extra Questions

,

Sample Paper

,

mock tests for examination

,

practice quizzes

,

Important questions

,

Ex 5.2 NCERT Solutions - Introduction to Euclid’s Geometry Class 9 Notes | EduRev

,

Semester Notes

,

Previous Year Questions with Solutions

,

Summary

,

Free

,

Viva Questions

,

Objective type Questions

,

Ex 5.2 NCERT Solutions - Introduction to Euclid’s Geometry Class 9 Notes | EduRev

,

past year papers

,

Ex 5.2 NCERT Solutions - Introduction to Euclid’s Geometry Class 9 Notes | EduRev

,

MCQs

;