" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
TA : AB = rusuk tegak : rusuk alas = 5 : 3
Karena persegi
maka keliling alasnya = 3 + 3 + 3 + 3 = 3(4) = 12
panjang semua rusuk tegaknya = 5 + 5 + 5 + 5 = 5(4) = 20
Jadi panjang semua rusuknya = 12 + 20 = 32
rusuk tegak = perbandingan rusuk / jumlah perbandingan x panjang kawat
rusuk tegak = 5 / 32 x 128
rusuk = 20 cm
Jadi, panjang rusuk trgaknya = 20 cm
maka panjangnya = 3 / 32 x 128 = 12 cm
Jawaban A