The state of stress in a deformable body is shown in the figure. Consider transformation of the stress from the $\text{x-y}$ coordinate system to the $\text{X-Y}$ coordinate system. The angle $\theta$, locating the $\text{X}$-axis, is assumed to be positive when measured from the $\text{x}$-axis in counter-clockwise direction.

The absolute magnitude of the shear stress component $\sigma _{\text{xy}}$ (in $\text{MPa}, \textit{round off to one decimal place}$) in $\text{x-y}$ coordinate system is ______________________