Jawabanmu

2014-06-03T21:00:30+07:00
Keliling = 2(p + l) .. = 2(18+12) = 2 (30) = 60 cm Luas = p×l =18×12 = 216 cm (kuadrat)
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Jawaban paling cerdas!
2014-06-03T21:02:09+07:00
Kel = 2(p+l) = 2(18 + 12) = 60cm
L = Pxl = ( 18 x 12 ) = 216cm2
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