Jawabanmu

2014-03-17T19:30:01+07:00
Luas = P x L = ( x + 2 ) x ( x - 3 ) = ( x + x ) x ( 2 -3 ) = 1 x -1 = -1 26 cm X 6 = 156 cm2 kalo salah maaf
2014-03-17T19:36:43+07:00
Keliling = 2(p+l)
     26  = 2 (x+2+x-3 )
       26 = 2x + 4 +2x -6
           26 = 4x -2
         4x =26+2
               x = 7
shg, p = x+2 = 7+2 =9
        l = x-3 =7-3=4
jadi L = p . l
         = 9.4 =36 cm