Calculate the area of the following polygon $($in $m^2).$ What is

the heuristic we discussed in our lecture to expedite the

process? Use the heuristic to provide the expanded formula

and as many in between steps as you wish, before the final

area result.

$A=\frac{1}{2}{\displaystyle \underset{?}{\overset{?}{}}}(E_i{N}_{i+1}-E_{i+1}{N}_i)$