The ratio of the angles of a triangle is 2 : 3 : 4. What is the largest angle in degrees?

The ratio of the angles of a triangle is 2 : 3 : 4. What is the largest angle in degrees? Correct Answer 80

ধরি, অনুপাতের সাধারণ রাশি Xপ্রশ্নমতে,   ২X+ ৩X+৪X=১৮০°=> ৯X=১৮০°=>X = ২০°বৃহত্তম কোণ = ৪×২০° = ৮০°     
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