The sum of two forces P and Q is R such that | R |=| P |. The angle θ (in degrees) that the resultant of 2 P and Q will make with Q is, \ \ \ \.

The sum of two forces $\displaystyle \vec{P}$ and $\displaystyle \vec{Q}$ is $\displaystyle \vec{R}$ such that $\displaystyle |\overrightarrow{\mathrm{R}}|=|\overrightarrow{\mathrm{P}}|$. The angle $\displaystyle \theta$ (in degrees) that the resultant of $\displaystyle 2 \vec{P}$ and $\displaystyle \vec{Q}$ will make with $\displaystyle \overrightarrow{\mathrm{Q}}$ is, \_\_\_\_.