Example 3: The angles δ and 60° are adjacent angles, which means that δ = 180° - 60° = 120°. The angles 60° and α are opposite angles, which means that α = 60°. The angles β and γ are corresponding angles of angle 60°, which means that β = 60° and γ = 60°. Jaa Sulje (c) e-Oppi Oy Tämän kuvan tekstivastine: (tyhjä tekstivastine) 5_example3.png 64.6 kt