$\"\"$

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The diagram opposite side is 2, hypotenuse is $\"\"$ and adjacent side is ?.

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Apply Pythagorean theorem

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$\"\"$

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$\"\"$

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Subtract 4 from each side.

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$\"\"$

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Take square root each side.

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$\"\"$

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$\"\"$ .

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$\"\"$

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Use opposite side is 2, hypotenuse is $\"\"$ and adjacent side is 4.

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$\"\"$ ,

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$\"\"$ ,

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$\"\"$ ,

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$\"\"$ ,

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$\"\"$ ,

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$\"\"$ . $\"\"$

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The angles are $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ .