Respuesta :

Answer:

138 degrees

Step-by-step explanation:

its a cointerior angle so the angles add up to 180

so 180 - 42 = 138

suspho

Answer:

138°

Step-by-step explanation:

If angle 4 has a measure of 42° in the given diagram, what is the measure of angle 6?

T is a flat angle (180°)

angle 4 = angle 8

angle 2 = angle 6

180 - 42 = 138°