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1 January, 21:08

The second angle in a triangle is five times as large as the first. The third angle is 2/3 as large as the first. What are the angle measures?

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  1. 2 January, 00:52
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    Hello,

    let x the first angle

    5x the second

    2/3 x the third

    x+5x+2/3x=180

    ==>20x/3=180

    ==>x=27 (°)

    5x=5*27=135

    2/3*x=2/3*27=18

    27+135+18=180
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