Question

What are the values of a and b in the figure?

Answer 1

a = 76°

b = 124°

Explanation:

Since the lines are parallel, we can prove that the smaller triangle's missing angle (shares a line with ∠b) is 56°.

180-56=124°

∠b=124°

Now to find Angle A:

180-56-48=

124-48=

76°

∠a=76°