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21 August, 23:29

The angles in a triangle are in the ratio 1:2:9

What is the size of the largest angle?

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  1. 21 August, 23:58
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    9+2+1 = 12

    180 / 12 = 15

    biggest angle = 9 so, 9 * 15 = 135

    135 is the answer
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