Question

Two angies of a triangle are of measures 150 and 30 find the measure of the third angle​

Answer 1

< 1 = 150

< 2 = 30

by angle sum property of triangles :

< 1 + < 2 + < 3 = 180

150 + 30 + < 3 = 180

< 3 = 180 - 180

< 3 = 0

third angle is of 0 degree