The tables below show the hydrograph values for a region with five different zones. The first table gives the area enclosed within each zone, assume that the previous zones are inside $($for example Zone $2$ surrounds Zone $1,$ Zone $3$ surrounds Zones $2$ and $1,$ etc.$).$

a$.$ Given the data below, develop and plot the Maximum D$-$A$-$D curves for rainfall durations of $4-$hrs$,8-$hrs$,$ and $12-$hrs

Enclosed Area Table:

$\backslash$table$[[$Time $($hrs$),\backslash$table$[[$Zone$],[1$