The angles of a triangle are in the ratio 2 : 3 : 4. The angles, in order, are :

60^o, 40^o, 80^o

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20^o, 60^o, 80^o

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80^o, 40^o, 60^o

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40^o, 60^o, 80^o

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Solution

The correct option is D
40^o, 60^o, 80^o

Let the angles are: 2x, 3x and 4x.

Thus, 2x + 3x + 4x = 180^o

Or, 9x = 180^o

Or, x = 20^o

Hence angles are: 40^o, 60^o, 80^o.

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