Question

If OA OB OC and D are the rays such that angle AOB=angle of=150°,angle BOC=30° and angle AOD=30°.Is it true that AOC and BOD are straight lines?justify your answer

Answer 1

let angle COD be x

x+100*+56*+74*=360*(by A.S.P.T)  

x+220*=360*

x=360*-220*

x=140*

Hence,

angle COD=140*

Answer 2

Answer:

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