Asked by  | 5th Dec, 2012, 07:43: PM

Expert Answer:

 
We know that the lengths of 2 tangents from a point to a circle are equal.
therfor AP=AR
& AQ=AS
 
subtracting both equations
 
AQ-AP=AS-AR
 
or,PQ=RS

Answered by  | 7th Dec, 2012, 01:09: AM

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