Angle 1 and Angle 2 are supplementary. If m∠1=27°, what is m∠2?

Suppose m∠1 = x degree

m∠2 = 17 x degree

As angle 1 & 2 are supplementary angles so

m∠1 + m∠2 = 180 degree ... eq 1

Substituting the values of angle 1 & 2 in eq 1, we get

x + 17x = 180

18x=180

x = 180/18 = 10 degree

17 x = 170 degree

m∠1 = 10 degree m∠2 = 170 degree.