" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
LP (luas permukaan) = 2 (p.l+p.t+l.t)
LP = 2 (4x.2x + 4x.3x + 2x.3x) = 1300 kedua sisi dibagi 2
8x²+12x²+6x² = 650
26x² = 650
x² = 650/26
x² = 25
x = √25
x = 5
a. panjang = 4x = 4.5 = 20 cm
lebar = 2x =2.5 = 10 cm
tinggi = 3x = 3.5 = 15 cm
b. panjang kerangka balok
= 4 (p+l+t)
= 4 (20+10+15)
= 4x45
= 180 cm
c. volume = p.l.t = 20x10x15 = 3000 cm³