Respuesta :
Answer:
∠3 = 107°
Step-by-step explanation:
Similar to the other question, ∠3 and ∠4 are supplementary and add up to 180 degrees as they make up the entirety of a straight line.
∠4 is 73°, so ∠3 has to be 107°.
Answer:
107°
Step-by-step explanation:
If you add up angle 3 and angle 4 you will get 180°
subtract 73 from 180