Question

1- Determine o valor de x no triângulo a seguir.
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Answer 1

$\sf x^2+12^2=13^2$

$\sf x^2+144=169$

$\sf x^2=169-144$

$\sf x^2=25$

$\sf x=\sqrt{25}$

$\boxed{\boxed{\sf x=5}}$