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20 July, 03:56

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

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  1. 20 July, 07:45
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    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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