दो वृत्तों की परिधि क्रमशः 308 सेमी और 440 सेमी है। उनकी त्रिज्याओं के बीच कितना अंतर है?

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SSC CGL 2022 Tier-I Official Paper (Held On : 07 Dec 2022 Shift 2)
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  1. 21 सेमी
  2. 49 सेमी
  3. 35 सेमी
  4. 14 सेमी

Answer (Detailed Solution Below)

Option 1 : 21 सेमी
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दिया गया:

दो वृत्तों की परिधि 308 सेमी और 440 सेमी है

प्रयुक्त सूत्र:

वृत्त की परिधि 

गणना:

⇒ वृत्त की परिधि = 

⇒ 308 = 

⇒ r1 = 49 सेमी

⇒ वृत्त की परिधि =​ 

⇒ 440 = 

⇒ r2 = 70 सेमी

⇒ त्रिज्या और वृत्त के बीच का अंतर = r2 - r1 = 70 - 49 = 21 सेमी

⇒ अत:, अंतर 21 सेमी है

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