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

hello, 
a angle is formed on a line of 180 degrees, so what your going to want to do it since your first angle is 40 degrees subtract 40-180= 140.

angle 2 is 40 degrees 

hope that helped good luck