## Elementary Geometry for College Students (7th Edition)

$\angle$M +$\angle$Q = 60 Not complementary
sum of angles of a triangle = $180^{\circ}$ $\angle$M +$\angle$Q +$\angle$N = 180 $\angle$N = 120 $\angle$M +$\angle$Q = $60^{\circ}$ sum of complementary angles = $90^{\circ}$ hence $\angle$M and $\angle$Q are not complementary