Jawabanmu

2014-06-01T21:44:15+07:00
88 = 2 (3x + 2x + 1x)
    =2 (6x)
    =88/12
    =7,33
tinggi = 1x = 1 (7,33) = 7,33 cm
panjang= 3x = 3 (7,33) =14,66 cm
lebar= 2x = 2 (7,33) =21,99 cm
2014-06-01T21:56:26+07:00
Misalkan p=3x,l=2x,t=x
Lp=2(pl+pt+lt)
88=2((3x*2x)+(3x*x)+(2x*x)
88=2(11x kuadrat)
88=22 x kuadarat
x kuadarat=88 per 22
x kuadrat=4
x=2