Jawabanmu

Jawaban paling cerdas!
2014-04-06T16:43:41+07:00
Dik :
Panjang : Lebar = 7:5
K = 120 cm
P = 7/7+5 x 120 : 2
= 7/12 x 120 : 2
= 35 cm
L = 5/7+5 x 120 :2
= 5/12 x 120 : 2
= 25 cm

semoga membantu

2014-04-06T16:45:43+07:00
Panjang : 7/12 x 120 = 70/2 = 35
Lebar    : 5/12 x120 = 50/2 =25 cm