Question

Aplicando o teorema de Pitágoras determine o valor de x nos triângulos c 9 b 12

Answer 1

${x}^{2} = {9}^{2} + {12}^{2}$
${x}^{2} = 81 + 144$
${x}^{2} = 225$
$x = \sqrt{225}$
$x = 15$