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In Figure, equal chords A B and C D of...

In Figure, equal chords `A B` and `C D` of a circle with centre `O ,` cut at right angles at `Edot` If `M` and `N` are mid-point of `A B` and `C D` respectively, prove that OMEN is a square.

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In Figure, equal chords A B and C D of a circle with centre O , cut at right angles at E . If M and N are mid-point of A B and C D respectively, prove that OMEN is a square.

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