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3.750 = 5x . 2x . 3x
3750 = 30x³
x³ = 3750/30
x³ = 125
x = 5
panjang = 5x = 5.5 = 25 (B)
p : l : t = 5 : 2 : 3
= 3.750 cm³
Ditanya :
p...???
Dijawab :
⇔ p × l × t =
5a × 2a × 3a = 3.750
30a³ =3.750
a³ =
a³ = 125
a =
a = 5
⇔ p = 5a
p = 5 · 5 25 cm
jadi, panjang balok tsb adl 25 cm (B)
smg membantu...