ExamBro
ExamBro
JEE Mains · Maths · STD 11 - 10.1 circle and system of circle

यदि एक बिन्दु, जहाँ \(5 \,cm\) तथा \(12 \,cm\) त्रिज्या के दो वृत्त एक दूसरे को काटते हैं, पर प्रतिच्छेदन कोण \(90^{\circ}\) है, तो उनकी उभयनिष्ठ जीवा की लम्बाई ( \(cm\) में) है

  1. A \(\frac{{13}}{2}\)
  2. B \(\frac{{120}}{13}\)
  3. C \(\frac{{13}}{5}\)
  4. D \(\frac{{60}}{13}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\frac{{120}}{13}\)

Step-by-step Solution

Detailed explanation

Let length of common chord \(=2x\) \(\sqrt {25 - {x^2}} + \sqrt {144 - {x^2}} = 13\) After solving \(x = \frac{{12 \times 5}}{{13}}\) \(2x = \frac{{120}}{{13}}\)
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app