दिए गए प्रश्न को पढ़ें और निर्णय लें कि प्रश्न का उत्तर देने के लिए निम्नलिखित में से कौन सी जानकारी पर्याप्त है।

∠ACB का मान क्या है?

जानकारी

1
2 ∠D = 60°

 

This question was previously asked in
RRC Group D Previous Paper 1 (Held On: 17 Sep 2018 Shift 1)
View all RRB Group D Papers >
  1. केवल 2 पर्याप्त है 
  2. दोनों 1 और 2 पर्याप्त हैं 
  3. केवल 1 पर्याप्त है
  4. या तो 1 या 2 पर्याप्त है

Answer (Detailed Solution Below)

Option 2 : दोनों 1 और 2 पर्याप्त हैं 
Free
RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

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गणना:

चूँकि एक वृत्त के एक ही खंड पर दो अलग-अलग बिंदुओं पर एक जीवा द्वारा बनाये गए कोण बराबर होते हैं।

∵ ∠D = 60°

अत: ∠ACB = ∠D = 60°

अतः 1 और 2 दोनों पर्याप्त हैं (विकल्प 2 सही है)

 

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