" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
p x l
20 x 7
= 140
L2 (segitiga)
a x t / 2
a = 20
t = 12 - 7 = 5
a x t / 2
= 20 × 5 / 2 = 50
Ltotal = L1 + L2 = 140 + 50 = 190