" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
36 = 2× (p+l)
p+l = 36/2
p+l = 18
l = 18 - p
luas = p x l
72 = p x l
72 = p x (18 - p)
72 = 18p - p^2
p^2 -18p + 72 = 0
(p - 12)(p - 6) = 0
p = 12 atau p = 6
utk p = 12 maka l = 18 - p = 18 - 12 = 6
utk p = 6 maka l = 18 - p = 18 - 6 = 12 *kebalikannya
ambil yg pertama p = 12 cm dan l = 6 cm