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  • 2021 April(Z04) Math Question 17

    Trigonometry

    - Pythagorean Theorem & sin cos tan

    Trigonometry for Right Triangles
    Choice D

    $$ sin=\frac{Base}{Hyp} $$

    Here we have

    $$ Base=7 \quad and\quad Hyp=9 $$

    Therefore

    $$ sinA=\frac{7}{9} $$

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