Question

A rainbow forms when sunlight reflects off raindrops at different angles. For blue light, the measure of ∠2 is 40°. What is the measure of ∠1?

Answer 1

Since there was a ray drawn from A through C the exterior angle of angle C is angle 1. Any straight line should equal to 180 degrees.

Answer 2

$\huge\colorbox{purple}{Answer}$

The measure of angle 1 is 40 degrees.