If two chords AB and CD of a circle AYDZBWCX intersect at right angles. Prove that arc CXA arc DZB=arcAYD arcBWC=semicircle 
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T S Chandra Shekar
March 10, 2017, 8:09 p.m.

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Mohit Passi's image
Mohit Passi
March 11, 2017, 2:08 p.m.

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