K = 2(p + l)
142 = 2(42 + l)
142 = 84 + 2l
2l = 142 - 84
l = 58/2
l = 29
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
K = 142 cm
p = 42 cm
ditanya :
l = ...?
jawab :
K = 2p + 2l
142 = 2x42 + 2l
142 = 84+2l
2l = 142-84
l = 58/2
l = 29
jadi lebar persegi panjang tersebut adalah 29 cm
K = 2(p + l)
142 = 2(42 + l)
142 = 84 + 2l
2l = 142 - 84
l = 58/2
l = 29