Answer
m$\angle$1=30 degrees
m$\angle$2=90 degrees
m$\angle$3=30 degrees
m$\angle$4=60 degrees
Work Step by Step
m$\angle$1=180-90-60
m$\angle$1=30 degrees
m$\angle$2=90 degrees (vertical angles)
m$\angle$3=m$\angle$1=30 degrees (vertical angles)
m$\angle$4=60 degrees (vertical angles)
