$\"\"$

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Triangle $\"\"$ is a right triangle with angle $\"\"$ .

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Angle $\"\"$ and $\"\"$ .

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The sum of the acute angles in any right angle is $\"\"$ .

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$\"\"$

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$\"\"$

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Find the value of $\"\"$ by using the formula for $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ m.

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$\"\"$

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Find the value of $\"\"$ by using the formula for $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ m.

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$\"\"$

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The angle $\"\"$ , $\"\"$ m, and $\"\"$ m.