Respostas

2013-09-23T13:51:23-03:00
Teorema de Pitágoras.
a² = b² + c²

 x^{2} =  (\sqrt{10})^{2} + (\sqrt{10})^{2} \\\\
 x^{2} = 10 + 10\\\\
 x^{2} = 20\\\\
x =  \sqrt{20}\\\\ x = 2 \sqrt{5}
1 5 1