$\"\"$

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The trigonometric equation is $\"\"$ .

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The trigonometric function : $\"\"$ .

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The length of adjacent side is $\"\"$ .

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The length of hypotenuse side is $\"\"$ .

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Find the length of opposite side.

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Pythagorean Theorm : $\"\"$ .

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$\"\"$ .

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The length of opposite side is $\"\"$ .

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$\"\"$

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The acute angle $\"\"$ is $\"\"$ .

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$\"\"$

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The acute angle $\"\"$ is $\"\"$ .