Jawabanmu

2014-02-27T17:28:13+07:00
Jawabannya 35.........
p = 7208
126000 meter persegi
p = 420 m l = 300 Luas = 420 dikali 300 = 126000 meter persegi
2014-02-27T17:48:09+07:00
P = 7
l = 5
K = 2 × (P+l)
K = 1440 : 2 = 720 
K= 2 × (420+300)
K = 2 × 720 = 1440 
L = 420 × 300 = 126000