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p : l = 3 : 2
Volume = 1440 cm³
t = 15 cm
Dijawab :
Luas alas = p x l
= 3n x 2n
= 6n²
V = luas alas . t
1440 = luas alas . 15
1440 = 15 . luas alas
luas alas = 1440/15
= 96
Jadi, jawabannya adalah B.
. = dikali
•V= P . l . t
1440 = 3x . 2x 15
1440 = 6x^2 x 15
1440/15 = 6x^2
96=6x^2
96/6= x^2
16 = x^2
√16 = x
4 = x
•Luas alas = p . l
= 3x.2x
=3.4 . 2.4
=96