MCQ Practice Mathematics 📖 x2 - 169 - y2 = 0 বৃত্তের ব্যাসার্ধ কত? A 13 B 14 C 16 D 169 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 PreviousWhen the diameter of a circle is tripled, the are of the circle will be increased by how many times?