(Solved): The rectangular plate is deformed into the shape shown by the dashed lines. Suppose that \( a=420 ...

The rectangular plate is deformed into the shape shown by the dashed lines. Suppose that \( a=420 \mathrm{~mm} \) and \( b=560 \mathrm{~mm} \) ( Figure 1) Determine the average normal strain along diagonal \( B D \). Express your answer in millimeters per millimeter to three significant figures. Figure Determine the average shear strain at corner \( B \) relative to the \( x, y \) axes. Express your answer in radians to three significant figures.