Question

calcule o valor de x no triângulo retângulo...

Answer 1

$(3\sqrt[]{5} )^{2}  = x^{2} + 6^{2} \\\\(3)^{2}  * ({\sqrt{5} )^{2} = x^{2}  + 36\\\\9 * 5 = x^{2}  + 36\\x^{2}  = 45 - 36\\\\x^{2}  = 9\\x = \sqrt{9\\\\\\x = 3}$