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Math Help - Trigonometric Ratio

  1. #1
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    Exclamation Trigonometric Ratio

    Use this table : Trigonometric Ratios Table

    Find y correct to the nearest inetger. Please explain how to get the answer! Please Please PLEASE!
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  2. #2
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    Quote Originally Posted by pow3r2dapplz View Post
    Use this table : Trigonometric Ratios Table

    Find y correct to the nearest inetger. Please explain how to get the answer! Please Please PLEASE!
    Hi,

    with the given values you know:

    y/7 = cos(40°) ===> y = 7 * cos(40°)

    Now use your table: cos(40°) = 0.7660

    Therefore: y = 7 * 0.7760 = 5.362
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