" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
228 = 2(9.4 + 9.t + 4.t)
228 = 2(36 + 13t)
228 = 72 + 26t
156 = 26t
t = 6 cm
Lp = 228 cm
p = 9 cm
l = 4 cm
Dit : t = .......?
peny :
Untuk mencari tinggi balok tersebut gunakan rumus luas permukaan balok.
Lp = 2 (p.l + p.t + l.t)
228 cm= 2 (9cm.4cm + 9cm.t +4cm.t)
228cm = 2 (36 cm² + 13 cm.t)
228cm= ( 72 cm² + 26 cm.t)
228 cm - 72 cm²= 26 cm.t
156 cm²= 26 cm.t
t = 156 cm² : 26 cm.t
t = 6 cm