∆ ABC এর 2A = 40% এবং ∠B = 80° । ∠C এর সমদ্বিখন্ডক AB বাহুকে D বিন্দুতে ছেদ করলে ∠CDA = ?
ক ১০০°
খ ১১০°
গ ৮০°
ঘ ৯০°
Explanation & Answer
Detailed explanations and answers are restricted. Unlock full access by logging in to your account.
This question appeared in