The state of stress in a deformable body is shown in the figure. Consider transformation of the stress from the x-y coordinate system to the X-Y coordinate system. The angle θ, locating the X-axis, is assumed to be positive when measured from the x-axis in counter-clockwise direction. The absolute magnitude of the shear stress component σ_xy (in MPa, round off to one decimal place) in x-y coordinate system is _______.