" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Panjang = 5a
Lebar = 3a
Tinggi = 2a
Panjang kawat kerangka = 4 x ( p + l + t )
160 = 4 x ( 5a + 3a + 2a )
160 = 4 x 10a
160 = 40a
a = 160 : 40
a = 4
Panjang kerangka balok itu adalah 5a
= 5 x 4 = 20 cm