Opposite angles may also appear when adjacent angles are drawn, especially in the case of vertical angles. Your instructor will likely teach you about opposites and adjacent angles together because ...

The tan⁻¹ function takes the answer to opposite ÷ adjacent (in this example, 5/7) and gives the angle Ɵ. To find Ɵ, calculate tan⁻¹ (5/7). Image caption, To write tan⁻¹ on a scientific ...