Jawabanmu

2014-08-28T17:34:13+07:00
Lp= (2 x p x l)+ (2x p x t) + (2 x l x t)
352 = ( 2x12 x l) + (2 x 12 x 4) + (2 x l x 4)
352 = 24l + 96 + 8l
352-96 = 24l+8l
256 = 32 l
256/32=l
8=l
maka lebarnya=8 cm.
jngn lupa visit saya.

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