Jawabanmu

2014-03-31T19:06:17+07:00
3/5 - 1/4 = ...
l = s xs 
720m2 = s x s 
s2 =  720 / 2
s2 = ...


1 5 1
2014-03-31T19:08:06+07:00
= 720 - (3/5 x 720) - (1/4 x 720)
= 720 - 432 - 180
= 108

1 5 1