Question

In the following image m angle 1= 117

Answer 1

Answer:

its 63

Step-by-step explanation:

180* is the whole degree for (1-2)

so 180-117=63

Answer 2

Answer:

m∠3 = 63°

Step-by-step explanation:

Linear pair: If in adjacent angles, the non common arms form a line, then they are called linear pair.

∠1 + ∠5 = 180    {linear pair}

117 + ∠5 = 180

       ∠5= 180 - 117

       ∠5 = 63°

If l₁ // l₂, then alternate interior angles should be congruent.

           ∠3 = ∠5

          ∠3 = 63°