Task $5$:

The rectangular plate is deformed into the shape of a parallelogram shown by the dashed line. Take $a=370mm$ and $blb=270$ mm $.$ Determine the average normal strain along edge AD and the average shear strain at corner A with respect to the $x$ and $y$ axes.

Express your answer to three significant figures and include the appropriate units.

Average normal shear strain:

$q,(-1\mathrm{.}46{10}^{-5})$ Average shear strain: $q,-0\mathrm{.}009$ radians$)$

Help me get that answers given in the picture.