Over 360° angle Negative angle Cotermainal Angles: Angles have the same terminal side. Find 2 positive and 2 negative angles that are coterminal to `200°` `200° + 360° = 560°` `200° + 2times360° = 920°` `200° - 360° = -160°` `200° - 2times360° = -520°` All coterminal angles of `π/4` are `π/4 + 2kπ` where `k` is a interger