Answer:
34
Step-by-step explanation:
let angle 1 be x
104 = 70 + x (exterior angle property)
x = 104 - 70 = 34 degrees
I guess you want the amount of angle 1?
∠1 = 34°
supplementary angle to 104° = 180° - 104° = 76°
∠1 = 180° - 70° - 76° = 34°
