Jawabanmu

2014-04-13T20:34:28+07:00
S = sisi persegi, l = lebar persegi panjang s = 3/2 l, kll persegi panjang = 46, panjangnya 15 l = (46-30) : 2 = 8 s = 3/2 × l = 3/2 × 8 = 12 kll = 4× 12 = 48