Respostas

A melhor resposta!
2014-03-20T17:50:53-03:00
20(20-3)/2=170

16(16-3)/2=104

24(24-3)/2=252
1 5 1
2014-03-20T17:52:18-03:00
A)170
b)104
c)252
a fórmula é: n-3.n:2