ACT 2021 April(Z04) Math Question 17 Explanation - ACT Helper

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2021 April(Z04) Math Question 17
Trigonometry
- Pythagorean Theorem & sin cos tan
Trigonometry for Right Triangles
Choice D
$s i n = \frac{B a s e}{H y p}$
Here we have
$B a s e = 7 a n d H y p = 9$
Therefore
$s i n A = \frac{7}{9}$
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