In a triangle, the three angles are in the ratio 2:3:4. What is the largest angle?
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Correct answer to question 174 (Mathematics Knowledge): 80
Method
The ratio parts sum to 9, and 180 degrees divided into 9 parts gives 20 degrees per part. The largest angle has 4 parts, so 4 x 20 = 80.
Updated: November 2026
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