Jawabanmu

2014-02-12T21:26:57+07:00
AOB      L. Juring OAB
------   =  ----------
COD     L. Juring OCD

120      L. Juring OAB
-----   =  -------------------
72             30

L. Juring OAB = 120 X 30 / 72 = 3600 / 72 = 50 cm persegi

#Sekian
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