Question

Me ajuda ai gnt please

Answer 1

$Resolu\c{c}\~ao \to \left[\begin{array}{ccc}Diagonal(D) = l \sqrt{2} \\\\ 2\sqrt{2} = l\sqrt{2}\\\\l = 2\end{array}\right \to \left\begin{array}{ccc}A = l^2\\\\A = 2^2 \\\\\boxed{\boxed{A = 4\ u.a}}\end{array}\right$

Espero ter ajudado. =^.^=