For example $6\mathrm{.}8$: What are the values of Shear Stress at Junsction of Flange and Web??

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$($a$)$ Cross$-$Section

$($b$)Q$ for N$.$A$.$

$15\mathrm{.}02$MPa&$1\mathrm{.}50$MPa

$17\mathrm{.}36$MPa&$0\mathrm{.}95$MPa

$12\mathrm{.}55$MPa&$1\mathrm{.}75$MPa

$16\mathrm{.}12$ MPa & $1\mathrm{.}80$MPa