A , B , E ARE POINTS ON CIRCLE AB IS DIAMETER WITH O AS A CENTRE AC AND BD ARE PERPENDICULARS ON A LINE PQ . BD MEETS THE CIRCLE AT E . PROVE THAT AC = ED

By property that 

∠AEB =  

Similarly,

All the angles in the quad. AEDC =

∴ AEDC is a rectangle and AC = ED ( opposite sides of rectangle are equal )

 

 

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