NCERT Class 9 Solutions: Line and Angles (Chapter 6) Exercise 6.2 – Part 1

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Interior, Alternate, Vertically Opposite, Corresponding Angl …

Interior, Alternate, Vertically Opposite, Corresponding Angl …

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Q-1 In the figure, find the value of and and then show that

Lines AB and CD is Parallel

Solution,

Give line of AB and CD and it is parallel to each other. Also give angle x and y

(Linear pair)

Also,

(Vertically opposite)

Now,

(Alternate interior angles)

Alternate interior angles are equal. Therefore

Q-2 In the figure, if and find x.

Line AB, CD, EF is Parallel

Solution:

Given, and

Now,

(Angles on the same side of transversal)

Also,

(Corresponding angles) and,

(Linear pair)

Equation,

and

°

and

Now,