" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
k = 2(p+l)
40cm=2(12+n)
40:2=12+n
20-12=n
n= 8 cm
b. luas?
L=p×l
=12×8
=96cm²
40 = 2(12+l)
40 = 24 + 2l
2l = 40 - 24
2l = 16
l = 16 : 2
l = 8
semoga membantu ya ^^