Question

Qual a medida da diagonal do paralelepípedo de medidas 3 x 2 x 1 cm?

Answer 1

$d=\sqrt{a^2+b^2+c^2}\\\\ d=\sqrt{3^2+2^2+1^2}\\\\ d=\sqrt{9+4+1}\\\\ \boxed{d=\sqrt{14\ cm}}$