The radius of Mohr’s circle is represented by [σxx, σyy = Direct stress and τxy = Shear stress]:

\(\sqrt {{{\left( {\frac{{{\sigma _{xx}} + {\sigma _{yy}}}}{2}} \right)}^2} + \tau _{xy}^2} \)

\(\frac{{\left( {{\sigma _{xx}} - {\sigma _{yy}}} \right)}}{2}\)

\(\frac{{\left( {{\sigma _{xx}} + {\sigma _{yy}}} \right)}}{2}\)

\(\sqrt {{{\left( {\frac{{{\sigma _{xx}} - {\sigma _{yy}}}}{2}} \right)}^2} + \tau _{xy}^2} \)

The radius of Mohr’s circle is represented by [σxx, σyy = Direct s

1.	The radius of Mohr’s circle is represented by [σxx, σyy = Direct stress and τxy = Shear stress]:
A.	\(\frac{{\left( {{\sigma _{xx}} - {\sigma _{yy}}} \right)}}{2}\)
B.	\(\frac{{\left( {{\sigma _{xx}} + {\sigma _{yy}}} \right)}}{2}\)
C.	\(\sqrt {{{\left( {\frac{{{\sigma _{xx}} - {\sigma _{yy}}}}{2}} \right)}^2} + \tau _{xy}^2} \)
D.	\(\sqrt {{{\left( {\frac{{{\sigma _{xx}} + {\sigma _{yy}}}}{2}} \right)}^2} + \tau _{xy}^2} \)
Answer» D. \(\sqrt {{{\left( {\frac{{{\sigma _{xx}} + {\sigma _{yy}}}}{2}} \right)}^2} + \tau _{xy}^2} \)