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March 27, 2017

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Ok, so im brand new at trigonometry. If i have a right triangle with an acute angle of 30° an opposite side of 4 and a hypotenuse of x how do ii find x

  • trig - ,

    sin 30 = opposite / hypotenuse = 1/2
    4/x = 1/2
    x = 8

    by the way:
    If it is a right triangle one angle is 90 degrees
    the sum of angles is 180
    so
    90 + 30 + last angle = 180
    the last angle is 60

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