<BOC=60° => <DOC=60°
140°:2=70°(<EOA) sau <BOA
60°+60°=120°(<DOB)
120°+140°=260°
360°-260°=100°(<DOE)
Raspuns : <DOB=120° ; <DOE=100° ; <EOA=70°
Sper ca te-am ajutat !
