The square deforms into the position shown by the dashed lines in $($Figure $1).$ The dimensions are $S=45mm,S^{\text{'}}=47mm,x_1=4mm,$ and $x_2=9mm.$ Side $D^{\text{'}}B\text{'}$ remains horizontal.

Figure

$1$ of $1$

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Part B

Determine the shear strain at $B$ relative to the $x,y$ axes.

Express your answer in radians to three significant figures.

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Part C

Determine the shear strain at $C$ relative to the $x,y$ axes.

Express your answer in radians to three significant figures.

$({}_C{)}_{xy}=$

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