Figure $3$C shows a cross section of a rectangular RC beam. The yield strength of the steel fy is $400$ Mpa and compressive strength of the concrete fc$$ is $30$ Mpa. The following are required:

$($i$)$ Evaluate the resisting moment Mr of the beam section using section analysis method.

$($ii$)$ Re$-$evaluate the resisting moment Mr using Table $2\mathrm{.}1$ of the Concrete Handbook $($You

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