Angles · Easy problem

A folding ironing board has a leg that swings out. When the board is folded flat for storage, the leg and the board lie along the same straight line, making a straight angle of $180^\circ$. When the board is set up for use, the leg makes an angle of $124^\circ$ with the board on one side. How many degrees is the angle between the leg and the board on the other side?