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8 February, 15:00

The angles in a triangle are in the ratio of 5:7:8. Find the measure of each angle.

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  1. 8 February, 17:40
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    In a triangle, the three interior angles always add to 180°

    5x + 7x + 8x = 180

    20x = 180

    x = 180/20

    x = 9

    m∠1 = 5x = 5*9 = 45°

    m∠2 = 7x = 7*9 = 63°

    m∠3 = 8x = 8*9 = 72°

    Answer:

    45°, 63° and 72°
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