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GeometryMediumGeometry Essentials

Geometry Essentials · Medium problem

Rays OA→\overrightarrow{OA}, OB→\overrightarrow{OB}, OC→\overrightarrow{OC}, OD→\overrightarrow{OD} leave point OO with AA, BB, CC, DD in order. The three angles ∠AOB\angle AOB, ∠BOC\angle BOC, ∠COD\angle COD are three consecutive multiples of 55, and m∠AOD=90∘m\angle AOD = 90^\circ. Find the three angles and m∠BODm\angle BOD.