MCQ Practice Mathematics 📖 বহিঃস্থ O বিন্দু হতে অংকিত ABC বৃত্তে OA এবং OB দুটি স্পর্শক। অতএব-- A AB ∥ OB B OA = OB C OA ≠ OB D OA ⊥ OB Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up