Jawabanmu

2014-08-22T21:46:09+07:00
P = 180cm
l = 150 cm
L = 180 cm x 150 cm = 27000 cm^2
p diperkecil = 180 x 3/5 = 108 cm
l diperkecil = 150 x 3/5 = 90 cm
L diperkecil = 108 cm x 90 cm = 9720 cm^2

Perbandingan = 27000: 9720 = 225: 81