Answer:
m < 2 = 42 degrees, m < 3 = 138 degrees, m < 4 = 42 degrees
Step-by-step explanation:
m < 1 and m < 3 are vertical angles, so they have the same angle measure. This is why m < 3 = 138 degrees.
m < 2 and m < 1 are supplementary angles, so they add up to 180 degrees.
m < 1 + m < 2 = 180
138 + m < 2 = 180
m < 2 = 42 degrees.
m < 2 and m < 4 are vertical angles, so they have the same angle measure. This is why m < 4 = 42 degrees.
Hope this helps!