Question

Responda preciso urgentemente da resposta

Answer 1

$Resolu\c{c}\~ao \to \left\{\begin{array}{ccc}sen\ 45^o = \frac{CO}{h}\\\\ \frac{ \sqrt{2} }{2} = \frac{\overline{BA}}{7}\\\\2*\overline{BA} = 7 \sqrt{2}\\\\\overline{BA} = \frac{7 \sqrt{2} }{2} \end{array}\right \to \left\{\begin{array}{ccc}7^2 = (\frac{7 \sqrt{2} }{2})^2+x^2 \\\\49 = \frac{49*2}{4}+x^2\\\\49 = \frac{49}{2} +x^2\\\\ 98 =49+2x^2\\\\2x^2 =49\\\\x^2 = \frac{49}{2}\\\\\boxed{\boxed{x = \frac{7}{ \sqrt{2} } = \frac{7 \sqrt{2} }{2} }} \end{array}\right$

Onde, "x" é o valor da altura do avião em relação à pista do aeroporto.

Espero ter ajudado. :))