In a circle with center o diameter ab and diameter cd are given .Prove that ad=bc
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Answer:AD and BC are going to act as chords
here o is the centre of the circle and as we know that when the chords will be intersecting each other Vertically opposite angles are going to need formed and and the arcs AD and BC are going to be equal to the measure of angles AOD and measure angle BOC
Hence now we know that chords corresponding to congruent arcs are going to be congruent.
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