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lebar = 3/8 x 120m = 45 m
luas = p x l
= 75m x 45 m = 3375 m
kalo gak salah
2p + 2l = 120m
2(p + l) = 120m
p + l = 60m -----> l = 60 - p
perbandingan
p/l = 5/3
3p = 5l
3p = 5(60 - p)
3p = 300 - 5p
3p + 5p = 300
8p = 300
p = 37,5
l = 60 - p
l = 60 - 37,5
l = 22,5
L = p x l
L = (37,5)(22,5)
L = 843,75
jangan lupa terima kasih ...!!!