Question

17- Qual é a área da figura a seguir?

Answer 1

$d = \ell\sqrt{2}$

$3\sqrt{3}u = \ell\sqrt{2}$

$\frac{ 3\sqrt{3} u}{\sqrt{2}} = \ell$

$\ell = \frac{ 3\sqrt{3} }{\sqrt{2}}u * \frac{\sqrt{2}}{\sqrt2} = \frac{3\sqrt{6} }{2}u$

$A = \ell^2$

$A = (\frac{3\sqrt{6} }{2}u)^2 = \frac{9*6}{4}u^2 = 13,5 u^2$