WBCS.LIVE practice question

ABC ত্রিভুজের (triangle) O পরিবৃত্তের কেন্দ্র (circumcentre) এবং ∠BAC = 50° হলে, ∠OBC = ?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 50°
  2. 60°
  3. 40°
  4. 30°

Correct answer and explanation

Correct answer: 40°

Explanation: ▪️∠OBC = 40°