a) AOX = 40, BOX = 60, AOB = 20, COB = 20, DOX = 130
б) AOB и COB
в) AOX, AOB
Объяснение:
а) <аох=40°
<BOX=60°
<AOB=20°
<COB=20°
<DOX=130°
б) <COB,<BOA
в)<ZOA=140
<DOA=90
<COA=40
<BOA=20
<XOA=40
