The angle shown is obtuse, so its measure will be more than $\displaystyle{{90}}^{\circ}\usepackage{cmbright}\Huge\$ . The protractor is aligned with the ray on the left at $\displaystyle{{0}}^{\circ}\usepackage{cmbright}\Huge\$ . Because $\displaystyle{{0}}^{\circ}\usepackage{cmbright}\Huge\$ is on the outside, the outside number to which the other ray is pointing will be the angle measure. This is $\displaystyle{{150}}^{\circ}\usepackage{cmbright}\Huge\$ .