Coterminal angles are angles that share the same terminal side
Add or subtract 360° to find coterminal angles in degrees
Add or subtract 2π to find coterminal angles in radians
Use the formulas: θ + 360°k or θ – 360°k for degrees
Use the formulas: θ + 2πk or θ – 2πk for radians
Let k be any integer
Repeat adding or subtracting the full rotation to get more coterminal angles
Check that the angles end at the same terminal side on the coordinate plane