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10-09-2016
Mathematics

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The angles in a triangle are in the ratio 2:3:4. Find the size of the smallest angle.

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texaschic101 texaschic101

10-09-2016

angles in a triangle add up to 180
2:3:4...added = 9

2/9 (180) = 360/9 = 40 <=== smallest angle
3/9 (180) = 540/9 = 60
4/9 (180) = 720/9 = 80

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