## MP Board Class 9th Maths Solutions Chapter 5 Introduction to Euclid’s Geometry Ex 5.2

Question 1.

How would you rewrite Euclid’s fifth postulate so that it would be easier to understand?

Solution:

If a line p intersects two lines l and m such that (∠1 + ∠2) is less than 180°, then lines l and m will meet at O, as shown in Fig. below.

Question 2.

Does Euclid’s fifth postulate imply the existence of parallel lines? Explain.

Solution:

Yes, Euclid’s fifth postulate is important to express parallel lines. Two lines will never meet if they are not according to Euclid’s fifth postulate.