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Help with Mohr's Circle

From the following given information :

From strain gauge readings taken at a point within a structure under plane stress conditions, it was found that the stresses with respect to a set of X-Y co-ordinate axes were σx = 65N/mm2, σy = −25N/mm2 and τxy = 35N/mm2.

How does one go about to determine the direct and shear stresses acting on a plane at an angle of 30˚ to the Y-axis, using Mohr's Circle graphical construction?

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