Question

We have already studied in the class that "Sum of all angles of a triangle is 180°.' Further we extend the side BC to D such that AB is parallel to EC. All the angles are marked as 1 to 5 as shown in the figure.On the bases of the above information answer the following questions(a to e)

a) AB||EC then ∠1 =
b) AB||EC then ∠2 = 
c) AB||EC then ∠1 + ∠2=
d) In triangle ABC ∠1 + ∠2+ ∠3 =
e) In triangle ABC ∠3+ ∠4+ ∠5 =

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Answer 1

Answer:

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