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[" 4"" the adjoining figure,the sides "A...

[" 4"" the adjoining figure,the sides "AB,BC" and "C" A of triangle ABC "],[" touch a circle with centre "O" and radius "r" at "P,Q" and "R" respectively."],[" Prove that "],[[" (i) "AB+CQ=AC+BQ,],[" (ii) "" Area "(Delta ABC),=(1)/(2)(" Perimeter of "Delta ABC)times r]]

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