Question

In the figure below, m<2=43°. Find m<1.

m<1 =

Answer 1

137°

Explanation:

Given: ∠2 = 43°

Find: ∠1 = ?

Solution:

∠1 + ∠2 = 180°

∠1 = 180° - ∠2

∠1 = 180° - 43°

∠1 = 137°