plz answer fast ....... irrelevant answers will be reported and if ur answer is right I will follow u and like ur answers and mark u as brainilist.....plz answer step by step
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plz answer fast ....... irrelevant answers will be reported and if ur answer is right I will follow u and like ur answers and mark u as brainilist.....plz answer step by step
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Answer:
hope it will help you
Step-by-step explanation:
since these parts produce tangent at the circle
hence,
PP =AQ
CP =CR
BR = BQ
Given,
AB =C
AC = B
BC = A
since CPOR is square hence
CP = CR = r
BR = BC - CR = a- r
BQ = BR = a- r
similarly,
AP = AC - CP = b- r
AQ= AP = b - r
Now,
AB = C
AQ + BQ = C
b - r + a - r = c
b + a - 2r = c
2r = a+b+c
which is the required equation!!!!!