1. Sebuah balok mempunyai panjang 3x,lebar 2x tinggi x.Jika volume balok 1296 cm3.Tentukanlah :
a).panjang balok
b).lebar balok
c).tinggi balok
d). luas permukaan balok
fitriams2
V balok = p x l x t 1296 = 3x . 2x . x 1296 = 6x³ 6x³= 1296 x³= 1296 : 6 x³ = 216 x = 8
panjang = 3x = 3.8 = 24 lebar= 2x = 2.8 = 16 tinggi = x = 8
semoga membantu :)
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Handii
Volume Balok = PLT 1296 = 3x . 2x . x 1296 = 6x³ x³ = 216 x = ∛216 x = 6cm
A. Panjang Balok = 3x = 3 x ( 6 ) = 18cm
B. Lebar Balok = 2x = 2 x ( 6 ) = 12cm
C. Tinggi Balok = x = 6cm
D. Luas Permukaan Balok = 2 (pl + pt + lt) Luas Perm. = 2 (18 x 12 + 18 x 6 + 12 x 6) Luas Perm. = 2 ( 216 + 108 + 72 ) Luas Perm = 2 x 396 Luas Perm. = 792cm
1296 = 3x . 2x . x
1296 = 6x³
6x³= 1296
x³= 1296 : 6
x³ = 216
x = 8
panjang = 3x = 3.8 = 24
lebar= 2x = 2.8 = 16
tinggi = x = 8
semoga membantu :)
1296 = 3x . 2x . x
1296 = 6x³
x³ = 216
x = ∛216
x = 6cm
A. Panjang Balok = 3x = 3 x ( 6 ) = 18cm
B. Lebar Balok = 2x = 2 x ( 6 ) = 12cm
C. Tinggi Balok = x = 6cm
D. Luas Permukaan Balok = 2 (pl + pt + lt)
Luas Perm. = 2 (18 x 12 + 18 x 6 + 12 x 6)
Luas Perm. = 2 ( 216 + 108 + 72 )
Luas Perm = 2 x 396
Luas Perm. = 792cm
Semoga Benar ^^