Question

Find all missing angles. m∠1 = m∠2 = m∠3 = m∠4 =

Answer 1

Answer:

Angle 1 =51. 72+57=129. 129+51=180

Angle 2=18. there is a right angle 72+18=90

Angle 3=123

Angle 4=39 angle 2+angle 3+angle 4 equals 180

123+18=141

180-141=39