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Neto= 50kg-1,5kg=48,5kg
2. 180*=40*+60*+C
180*-100*=C
80*=C
Netto = 50 - 15 = 35
2.sudut segitiga = 180*
C =A + B = 40 + 60
= 100
C. = 180-100
C. = 80*