Jawabanmu

2014-04-26T16:33:19+07:00
Diagonal bidang = 1/2 n (n-3) => 1/2 x 5 (5-3) = 1/2 x 5 x 2 => 5
2014-04-26T16:36:46+07:00
Banyak diagonal bidang 2.5=10
sisi pada limas segi 7 = 7 + 1= 8