AS shown in the figure :
a // b and t is a transversal
So, the angle of the measure 49 is congruent to the angle 5
Because they are corresponding angles
So, the measure of angle 5 = 49
The angles 5 and 6 are supplementary angles
So, the sum of the angles 5 and 6 is equal to 180
So, the measure of angle 6 = 180 - angle 5 = 180 - 49 = 131
So,
m∠5 = 49
m∠6 = 131