$\"\"$

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Unit circle radius is $\"\"$ .

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The line segment $\"\"$ is tangent to the circle and $\"\"$ is acute.

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(a) Find the area of $\"\"$ in terms of $\"\"$ and $\"\"$ .

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Apply the formula for area of the triangle is $\"\"$ .

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$\"\"$

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Substitute $\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$ .

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The area of the $\"\"$ is $\"\"$ .

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$\"\"$

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(b) Find the area of $\"\"$ in terms of $\"\"$ and $\"\"$ .

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Apply the formula for area of the triangle is $\"\"$ .

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Area of $\"\"$ is $\"\"$ .

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Consider $\"\"$ in $\"\"$ triangle.

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Area of $\"\"$ is $\"\"$ .

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$\"\"$

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(c)

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The area of sector $\"\"$ is $\"\"$ .

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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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(a) The area of the $\"\"$ is $\"\"$ .

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(b) Area of $\"\"$ is $\"\"$ .

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(c) $\"\"$ .