Respostas

2014-06-08T23:25:11-03:00
N.(n-2)/2 = 5.2/2 = 5 diagonais
  • Usuário do Brainly
2014-06-08T23:45:36-03:00
D= [n(n-3)]/2

d=[ 5(5-3)]/2
d=[5(2)]/2
d =  5.2/2
d=10/2
d=5