$*6\mathrm{.}82$ For the angle shape and loading of Prob. $6\mathrm{.}81,$ determine the distri$-$

bution of the shearing stresses along line $D^{\text{'}}{A}^{\text{'}}$ in the vertical leg$\mathrm{.}6\mathrm{.}80$ For the angle shape and loading of Sample Prob. $6\mathrm{.}6,($a$)$ determine

the points where the shearing stress is maximum and the corre$-$

sponding values of the stress, $(b)$ verify that the points obtained are

located on the neutral axis corresponding to the given loading.

$*6\mathrm{.}81$ Determine the distribution of the shearing stresses along line

$D^{\text{'}}{B}^{\text{'}}$ in the horizontal leg of the angle shape for the loading

shown. The $x^{\text{'}}$ and $y^{\text{'}}$ axes are the principal centroidal axes of the

cross section.