Tolongg jawab pertanyaan inii yea!! 1. Panjang, lebar dan tinggi sebuah balok berbanding = 5:3:2. Jika volume balok = 1920 cm3, maka luas alasnya adalah..
Pliss tolonng jawab yahh, pakek jalannya!!
magica
Volume = p x l x t 1920 = 5a x 3a x 2a 1920 = 30a³ a³ = 1920/30 = 64 a = 4 panjang = 5 x 4 = 20 cm lebar = 3 x 4 = 12 cm tinggi = 2 x 4 = 8 cm luas alas = 20 x 12 = 240 cm²
1920 = 5a x 3a x 2a
1920 = 30a³
a³ = 1920/30 = 64
a = 4
panjang = 5 x 4 = 20 cm
lebar = 3 x 4 = 12 cm
tinggi = 2 x 4 = 8 cm
luas alas = 20 x 12 = 240 cm²
30a^2 = 1920
a^2 = 1920 : 30
= 64
= 8
LA = (5x8) (3x8)
= 40 x 24
= 960 cm^2