Explanation:
Angle 2 would be 49 ° because it's congruent to the other vertical angle.
Angle 3 in the left triangle is 68° and now that we know 2 is 49° we can solve that triangle.
The left triangle is 180° in total, to figure this out, listen to these steps
68 + 49 = 117°
180 - 117 = 63°
Angle 1 in left triangle is 63°
Angle 4 is 93 - 49 = 44°
and angle 3 would be = 87
49 + 44 + 87 = 180