Răspunsuri

Cel mai inteligent răspuns!
2014-11-16T14:52:06+02:00
Ex. avem unghiurile AOB si COB
AOB=x
COB=x+30
AOB+COB=90 grade
x+x+30=90
2x=90-30
x=60/2
x=30
AOB=30 grade
COB=30+30=60 grade
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