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In Fig. 6.62, two chords AB and CD of a circle intersect each other at the point P (when produced) outside the circle. Prove that Delta PAC similar Delta PDB

Q8 (1)   In Fig. 6.62, two chords AB and CD of a circle intersect each other at the point P
             (when produced) outside the circle. Prove that
             \Delta PAC \sim \Delta PDB

            

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In \Delta PAC \,and \,\Delta PDB,

\angle P=\angle P         (Common)

\angle PAC=\angle PDB  (Exterior angle of a cyclic quadrilateral is equal to opposite interior angle)

So,  \Delta PAC \sim \Delta PDB       ( By AA rule)

 

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