Question

Show that in the given fig line l is parallel to line m. Give reason to support your answer.

Answer 1

Answer:

Step-by-step explanation:

We name the figure as follows :

Now, we can see that GH is a line.

So, angle EAH + angle BAE= 180 degree

SO, 120 degree + angle BAE = 180 degree

or, angle BAE = (180-120) degree = 60 degree

Now, we can see that angle DBA = angle BAE = 60 degree

So, CD II EF (alternate interior angles are equal)

or, l II m

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