यदि निम्नलिखित आकृति में, PA = 15 सेमी, PD = 6 सेमी, CD = 4 सेमी हैं, तो AB का मान क्या है?

523

  1. 1.5 सेमी
  2. 3 सेमी
  3. 4.5 सेमी
  4. 11 सेमी

Answer (Detailed Solution Below)

Option 4 : 11 सेमी
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Detailed Solution

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माना की PB = x

secant की विषेशता के अनुसार

PB × PA = PD × PC     [PC = PD + CD]

x × 15 = 6 × 10 

x =  4 = PB 

AB = 15 – 4 = 11 सेमी

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