Jawabanmu

2014-03-05T19:58:02+07:00
Keliling = 66
Lebar = Panjang - 5
K = 2 ( p + l )
66 = 2 ( p + p - 5 )
66/2 = 2p - 5
33 + 5 = 2p
p = 38 / 2 = 19 cm                              l = p - 5 = 19 - 5 = 14 cm