Question

Calcule X nas figuras abaixo:

Answer 1

Teorema de Pitágoras:

$(x + 8) {}^{2} = {x}^{2} + 12 {}^{2}$
$x {}^{2} + 16x + 64 = x {}^{2} + 144$
$16x = 144 - 64$
$16x = 80$
$x = 5$