alleryসমতল জ্যামিতিতে যেকোনো ত্রিভুজের তিনটি অন্তঃকোণের সমষ্টি কত?
A90 degrees
B270 degrees
C360 degrees
D180 degrees
Answer & Solution
Correct answer: D. 180 degrees
যেকোনো সমতলীয় ত্রিভুজের অন্তঃকোণগুলির সমষ্টি সর্বদা 180 degrees।
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