A trapezoidal canal, having a bottom width of $5.0 \mathrm{~m}$ and a side slope of $1 \mathrm{H}: 1 \mathrm{~V},$ is carrying a discharge of $20 \mathrm{~m}^{3} \mathrm{~s}^{-1}$. The critical depth, in $\mathrm{m}$, is
(A) 1.09
(B) 1.18
(C) 2.12
(D) 2.62
A trapezoidal canal, having a bottom width of $5.0 \mathrm{~m}$ and a side slope of $1 \mathrm{H}: 1 \mathrm{~V},$ is carrying a discharge of $20 \mathrm{~m}^{3} \mathrm{~s}^{-1}$. The critical depth, in $\mathrm{m}$, is
(A) 1.09
(B) 1.18
(C) 2.12
(D) 2.62