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11 January, 15:08

The ratio of the interior angle measures of a triangle is 1:4:5. What are the angle measures?

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  1. 11 January, 15:32
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    Total units of ratio = 1+4+5 = 10

    Value of 1 unit = 180/10 = 18

    It would be 1 (18), 4 (18), 5 (18) = 18, 72 & 90
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