Question

Aplicando o teorema de pitagoras determine a medida x indicada em cada um dos triângulos retângulo

Answer 1

$\boxed{\begin{array}{l}\tt a)~\sf x^2=4^2+4^2\\\sf x^2=2\cdot4^2\\\sf x=\sqrt{2\cdot4^2}\\\sf x=4\sqrt{2}\\\tt b)~\sf x^2+5^2=13^2\\\sf x^2+25=169\\\sf x^2=169-25\\\sf x^2=144\\\sf x=\sqrt{144}\\\sf x=12\end{array}}$