ACT 2019 April(B04) Math Question 8 Explanation - ACT Helper

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2019 April(B04) Math Question 8
Trigonometry
- Pythagorean Theorem & sin cos tan
Choice G
$x^{2} + 40^{2} = 50^{2}$ $\Rightarrow x^{2} = 2500 - 1600 = 900$ $\Rightarrow x = 30$
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