Jawabanmu

2014-05-16T13:12:39+07:00
Keliling persegi panjang = keliling persegi
2p+2L=4S
2 . 1600/32 + 2  32 = 4 s
50+32 = 2s
s = 41
luas persegi = s^2 = 1681
perb. L1 / L2 = 1600:1681
perb . L1/ l2 =1600:1681 maksudnya ap .trus jawabannya yg mna
perb luas persegi : persegi panjang = 1681 : 1600
oh.
2014-05-16T13:14:50+07:00
Sisi persegi = akar 1600 = 40 cm
keliling = 40 x 4 = 160
160 = 32 + 32 + 2p
2p = 96 -> p = 48 cm
luas persegi panjang = 48 x 32 = 1536 cm2
perbandingan Iuas persegi : persegi panjang = 1600 : 1536 = 25 : 24

maaf kaIo saIah..