Question

please anyone answer me please tomorrow is my examination ​

Answer 1

Answer :

1st answer :

Given: AB and CD are the two equal cords of congruent circles

Required To Prove : Angle AOB = Angle COD

Proof: In Triangle AOB and triangle COD ,

          OA=OC

          OB=OD

           AB=CD

       By S.A.S congruency rule,

        Triangle AOB is congruent to Triangle COD

        By CPCT, Angle AOB= Angle COD

        Hence , proved

2nd answer:

Given: AB and CD are two chords of congruent circles such that

          Angle AOB = Angle COD

Required To Prove : Chord AB = Chord CD

Proof: In Triangle AOB and Triangle COD,

          OA=OC

          Angle AOB = Angle COD

          OB=OD

    By S.A.S congruency rule,

       Triangle AOB is congruent to Triangle COD

     By CPCT, chord AB = chord CD

     Hence, Proved

HOPE YOU UNDERSTAND THIS PROBLEM .....