Answer:
Step-by-step explanation:
Since, m∠2 + 75° = 145° [Angle having measure 145° is an exterior angle of the triangle]
m∠2 = 145° - 75°
m∠2 = 70°
m∠1 + m∠2 = 180° [Linear pair of angles]
m∠1 + 70° = 180°
m∠1 = 110°
m∠3 + 75° = 180° [Linear pair of angles]
m∠3 = 105°
m∠4 = 75° [Vertically opposite angles]
m∠5 + 145° = 180° [Linear pair of angles]
m∠5 = 180 - 145
m∠5 = 35°
