Perbandingan panjang,lebar,dan tinggi sebuah balok adalah 2:3:4.Jika volume balok 648cm^3,tentukan panjang,tinggi dan lebar balok tsb! isi cara ya buat besok
Beta27
Panjang : lebar : tinggi 2 : 3 : 4 2y : 3y : 4y
volume = p x l x t 648 = 2y x 3y x 4y 648 = 24y³ y³ = 648/24 y³ = 27 y = ∛27 y = 3
panjang = 2y = 2 x 3 = 6 cm lebar = 3y = 3 x 3 = 9 cm tinggi = 4y = 4 x 3 = 12 cm
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CarolineL
P : l : t = 2 : 3 : 4 Misalkan = 2a × 3a × 4a = 648 maka, 2a × 3a × 4a = 648 24a³ = 648 a³ = 27 a = ∛27 a = 3
p = 2a = 2 × 3 = 6 l = 3a = 3 × 3 = 9 t = 4a = 4 × 3 = 12
2 : 3 : 4
2y : 3y : 4y
volume = p x l x t
648 = 2y x 3y x 4y
648 = 24y³
y³ = 648/24
y³ = 27
y = ∛27
y = 3
panjang = 2y = 2 x 3 = 6 cm
lebar = 3y = 3 x 3 = 9 cm
tinggi = 4y = 4 x 3 = 12 cm
Misalkan = 2a × 3a × 4a = 648
maka,
2a × 3a × 4a = 648
24a³ = 648
a³ = 27
a = ∛27
a = 3
p = 2a = 2 × 3 = 6
l = 3a = 3 × 3 = 9
t = 4a = 4 × 3 = 12