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AP EAMCET202421 May 2024Morning ShiftMathematicsStraight LinesActual

In ABC , if AB : BC : CA =6: 4: 5 , then R : r=

Options

  1. A16: 9
  2. B16: 7
  3. C12: 7
  4. D12: 9

Correct answer

B. 16: 7

Step-by-step solution

aligned & c: a: b=6: 4: 5 & c=6 k, a=4 k, b=5 k & ~s = 15 2 k, 4 r= s = 2 15 k , R = a b c 4 & ^2= 15 2 k 3 k 2 7 k 2 5 k 2 & = 15 3 7 5 16 k^4 & R r = s a b c 4 ^2 = 15 k 2 4 k 5 k 6 k 4 15 21 5 k^4 16= 16 7 aligned

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