alleryএকটি ত্রিভুজের কোণগুলির অনুপাত 2:3:4। বৃহত্তম কোণটি কত?
A70°
B80°
C60°
D90°
Answer & Solution
Correct answer: B. 80°
9টি ভাগ 180 ডিগ্রিকে ভাগ করে, তাই প্রতিটি ভাগ 20 ডিগ্রি এবং বৃহত্তম কোণটি হলো 4 x 20 = 80 ডিগ্রি।
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