Find the hydraulic depth for a triangular channel with a side slope of $2$:$1($H:V$)$ and a flow depth of $4\mathrm{.}1$ m$.$Question $2$ Answera$\mathrm{.}1\mathrm{.}02$ mb$\mathrm{.}1\mathrm{.}83$ mc$\mathrm{.}2\mathrm{.}05$ md$\mathrm{.}4\mathrm{.}10$ m