Question

Calcule o valor de x da figura abaixo

Answer 1

$m^2=3^2+(3\sqrt3)^2\\m^2=9+27\\m^2=36\\-----------------------------\\\\n^2=m^2+2^2\\n^2=36+4\\\\n^2=40\\-----------------------------\\7^2=x^2+n^2\\49=x^2+40\\x^2=49-40\\x^2=9\\x=\sqrt{9}\\x=3$