Jawab =
diketahui
panjang(p) = 1 1/2 lebar atau 3/2 lebar
keliling persegi panjang = 2(p+l)
110 = 2p + 2l
110 = 2(3/2l) + 2l
110 = 3l + 2l
110 = 5l
110/5 = l
l = 22 cm (lebar)
panjang?
p = 3/2 l
p = 3/2(22)
= 33 cm
Luas persegi panjang = p×l
= 33 × 22
= 726 m² (B)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Jawab =
diketahui
panjang(p) = 1 1/2 lebar atau 3/2 lebar
keliling persegi panjang = 2(p+l)
110 = 2p + 2l
110 = 2(3/2l) + 2l
110 = 3l + 2l
110 = 5l
110/5 = l
l = 22 cm (lebar)
panjang?
p = 3/2 l
p = 3/2(22)
= 33 cm
Luas persegi panjang = p×l
= 33 × 22
= 726 m² (B)