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Circles Tangents Problems (view source)
Revision as of 05:28, 14 August 2014
, 05:28, 14 August 2014→Problem 5
=(AB+BQ)+(CR+CA)<br>
=(AB+BQ)+(CR+CA)<br>
=AQ+AR ----- (From fig)<br>
=AQ+AR ----- (From fig)<br>
=AQ+AQ -- --- (∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵∵AQ=AR)<br>
=AQ+AQ -- --- (∵AQ=AR)<br>
=2AQ<br>
=2AQ<br>
∴ AQ = <math>\frac{1}{2}</math> [perimeter of △ABC]
∴ AQ = <math>\frac{1}{2}</math> [perimeter of △ABC]