Respostas

2013-10-30T19:19:15-02:00
D=l \sqrt{2}
a) 
4 \sqrt{2} = l \sqrt{2}
l=4 \sqrt{2} / \sqrt{2}
l= 4 cm

b)
5= l \sqrt{2}
l= 5 \sqrt{2}
l= \frac{ \sqrt{5} }{ \sqrt{2} }  . \frac{ \sqrt{2} }{ \sqrt{2} } =
l=5 \sqrt{2} /2
l= 2,5 \sqrt{2} cm


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