Which statement is true about the angles above a it's equal 60° because the angles are a b j a c e n t angles b x = 60° because the angles are vertical ankles c x equals 120 because the angles or s u p p l e m e n t a r angles DX = 120° because the angles are complementary angles 60° angles

The statement that is true is: "a + b = 60° because the angles are adjacent angles."