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perbandingn p : l : t = 7 : 2 : 3
panjang rangka = 192 cm
faktor pengali = x
maka :
Rngka = 4 x (7x + 2x + 3x)
192 = 4 x (12x)
192 = 48x
x = 192/48
x = 4 cm
jadi :
panjang = 7 x 4 = 28 cm
lebar = 2 x 4 = 8 cm
tinggi = 3 x 4 =12 cm
7 : 2 : 3
mencari panjang = 7/12 x 192
= 7 x 16 = 112 cm
mencari lebar = 2/12 x 192
= 2 x 16 = 32 cm
mencari tinggi = 3/12 x 192
= 3 x 16 = 48