Incorrect. Draw each angle in standard position: the initial side goes on the x-axis. The angle moves counter-clockwise to the terminal side if the measure is positive; the angle moves clockwise to the terminal side if the measure is negative. Find the measure of the angle formed by the terminal side and the x-axis. This is the reference angle. Remember that the reference angle has a value anywhere from $\displaystyle{{0}}^{\circ}\usepackage{cmbright}\Huge\$ to $\displaystyle{{90}}^{\circ}\usepackage{cmbright}\Huge\$ .