ΔABC-তে, O হল ত্রিভুজের পরিধিকেন্দ্র এবং ∠BOC = 60°, তাহলে ∠BAC-এর মান কত হবে?

  1. 90°
  2. 30°
  3. 60°
  4. 45°

Answer (Detailed Solution Below)

Option 2 : 30°
Free
RRB NTPC Graduate Level Full Test - 01
2.4 Lakh Users
100 Questions 100 Marks 90 Mins

Detailed Solution

Download Solution PDF

প্রদত্ত:

O হল পরিধিকেন্দ্র

∠BOC = 60°

সূত্র ব্যবহৃত:

কেন্দ্রে উপস্থিত কোণটি বৃত্তে উপস্থিত কোণের দ্বিগুণ

গণনা:

quesImage4302

∠BOC = 2 x ∠BAC

⇒ 60° = 2 x ∠BAC

⇒ ∠BAC = 30°

∴ ∠BAC হল 30°

Latest RRB NTPC Updates

Last updated on Jul 21, 2025

-> RRB NTPC UG Exam Date 2025 released on the official website of the Railway Recruitment Board. Candidates can check the complete exam schedule in the following article. 

-> SSC Selection Post Phase 13 Admit Card 2025 has been released @ssc.gov.in

-> The RRB NTPC Admit Card CBT 1 will be released on its official website for RRB NTPC Under Graduate Exam 2025.

-> The RRB NTPC 2025 Notification released for a total of 11558 vacancies. A total of 3445 Vacancies have been announced for Undergraduate posts while a total of 8114 vacancies are announced for Graduate-level posts in the Non-Technical Popular Categories (NTPC).

-> Prepare for the exam using RRB NTPC Previous Year Papers.

-> UGC NET June 2025 Result has been released by NTA on its official site

More Triangles, Congruence and Similarity Questions

Get Free Access Now
Hot Links: teen patti go teen patti casino teen patti master old version