Question

Calcule a medida x no triângulo retângulo a seguir.

Answer 1

$\large\boxed{\begin{array}{lr}\boxed{\boxed{\bf{\blue{teorema \: de \: pitágoras }}}} \\ \\ a {}^{2} = b {}^{2} + c {}^{2} \\ x {}^{2} = 28 {}^{2} + 21 {}^{2} \\ x {}^{2} = 784 + 441 \\ x {}^{2} = 1225 \\ x = \sqrt{1225} \\ \boxed{ \boxed{ \red{x = \boxed{35}}}} \\ \\ \\ \end{array}}$