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Luas sisi depan = 180 cm (sisi depan = p x t)
Luas sisi alas = 216 cm (sisi alas = p x l)
panjang = 18 cm
maka :
L depan = 18 x t
180 = 18 x t
t = 180/18
t = 10 cm
jadi tinggi = 10 cm
Lalas = p x l
216 = 18 x l
l = 216/18
l = 12 cm
jadi lebar = 12 cm
maka :
V = 18 x 12 x 10
= 2.160 cm³
216 = 18 . l
l = 216/18 = 12
luas depan = lebar . tinggi
180 = 12 . t
t = 180/12 = 15
volume = panjang . lebar . tinggi
= 18cm . 12cm . 15cm
= 216cm . 15cm = 3240cm2