• Here are two different ways to visualize the trigonometry ratios:

    trigside

     

    ratios

    Notes:

    • If they ask you for a sin, cos, or tan of an angle, then they want a ratio (usally in the form of a decimal).
    • If they ask you to find an angle, then it is the measure of the angle in degrees (use the inverse).

     

    Law Of Sines

    law of sines

     

    law of cosines

     

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