Kinematics: JEE Main 2021 Physics question

If $\overrightarrow P \times \overrightarrow Q = \overrightarrow Q \times \overrightarrow P$, the angle between $\overrightarrow P$ and $\overrightarrow Q$ is $\theta$(0$^\circ$ < $\theta$ < 360$^\circ$). The value of '$\theta$' will be ___________$^\circ$.