Angle 8 and angle 14 are corresponding angles, meaning they are congruent (the measure of angle 14 is 118 degrees) and since angle 14 and angle 13 are supplementary (add up to 180 degrees) because they are a linear pair, 118+measureofangle13= 180, meaning that 180-118= 62, so 62 degrees is the measure of angle 13. I did this recently for BYU geo.