Jawabanmu

2014-05-29T23:41:41+07:00
L = p x l Misal: p = 3x l = 4x * L = p . l 48 = 3x . 4x 48 = 12x^2 X^2 = 48/12 = 4 X = 2 Jadi p = 3x = 6cm, l = 4x = 8cm Keliling = 2(p+l) = 2(6+8) = 2(14) = 28cm