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2014-10-20T20:05:12+03:00
Ip :AOB+BOC+COD=200 GRADE
STIM CA :AOB+BOC+COD+DOA=360 GRADE (1)
200+DOA=360
DOA=360-200=160 GRADE
CUM DOA≡BOC⇒BOC=120 GRADE
DE ASEMENEA AOB≡COD
DINREL.(1) AVEM AOB+120+AOB+120=360
2AOB=360-240
AOB=120/2=60 GRADE
COD=60 GRADE