Jawabanmu

2014-09-09T21:25:46+07:00
D1= P= 16,343
      l= 4,2
d2=Luas 
d3=
P×l=L
16,343 ×4,2 =68,64
2014-09-09T23:42:14+07:00
Dik
p = 16,343 cm
l = 4,2 cm
Luas =?

L = p . l
L = 16,343 . 4,2
L = 68,64 cm^2


semoga membantu ^-^