1.

Let be two rays and let be a ray between and such that ∠AOX > ∠XOB.Let be the bisector of ∠AOB. Prove that ∠AOX − ∠XOB = 2∠COX.

Answer»

Let be two rays and let be a ray between and such that AOX > XOB.



Let be the bisector of AOB. Prove that AOXXOB = 2COX.





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