দুটি সম্পূরক কোণের মধ্যে বৃহত্তর কোণটি ছোট কোণটির চেয়ে 28° বেশি। ছোট কোণটি (ডিগ্রিতে) হল:

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RRB NTPC Graduate Level CBT-I Official Paper (Held On: 05 Jun, 2025 Shift 1)
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  1. 79°
  2. 84°
  3. 80°
  4. 76°

Answer (Detailed Solution Below)

Option 4 : 76°
Free
RRB NTPC Graduate Level Full Test - 01
100 Qs. 100 Marks 90 Mins

Detailed Solution

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প্রদত্ত:

দুটি কোণ সম্পূরক, এবং বৃহত্তর কোণটি ছোট কোণটির চেয়ে 28° বেশি।

ব্যবহৃত সূত্র:

যদি দুটি কোণ সম্পূরক হয়, তবে তাদের যোগফল 180°.

ধরা যাক, ছোট কোণটি x.

বৃহত্তর কোণ = x + 28°

গণনা:

কোণগুলির যোগফল = x + (x + 28°) = 180°

⇒ 2x + 28 = 180

⇒ 2x = 180 - 28

⇒ 2x = 152

⇒ x = 76°

∴ সঠিক উত্তর হল বিকল্প (4).

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