di ketahui balok ABCD,EFGH dng AB +(x+1)cm , BC=x cm, dan AC =(x+2)cm. jika tinggi balok =2cm, volume balok = ?
tlng isi rumus dn cranya ..
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(x + 2)² = (x + 1)² + x²
x² + 4x + 4 = x² + 2x + 1 + x²
x² - 2x - 3 = 0
(x - 3)(x + 1) = 0
x = -1, 3
Namun karena panjang suatu sisi tidak mungkin negatif, maka x = 3
AB = 4 cm
BC = 3 cm
Volume = AB x BC x t
= 4 x 3 x 2
= 24 cm²
Semoga membantu