Parallelogram angles
The sum of the two angles of the parallelogram adjacent to one side is 180 °. The opposite angles of the parallelogram are equal. Using the formula below, you can find all four corners of the parallelogram.
.Find the angles of the parallelogram through the length of the sides and the diagonal
Side of the parallelogram a
Side of the parallelogram b
The diagonal of the parallelogram d
Angle α (degree)
Angle β (degree)