Question

in the given figure ,AB||CD .Prove that

Answer 1

Answer:here's ur answer

construct a line EF through point O and parallel to AB and CD

therefore, angle BPO + angle POF=180----(i)(co interior angles)

similarly angle DQO + angle QOF=180----(ii)

on adding(i) and (ii)we get,

angle BPO+ angle POQ+angleDQO=360

so,angle BPO+ angle POQ+angleDQO=4×90

hence proved

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