$\"\"$

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(a).

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The angle is $\"\"$ .

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$\"\"$ to $\"\"$ is quadrant I.

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$\"\"$ to $\"\"$ is quadrant II.

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$\"\"$ to $\"\"$ is quadrant III.

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$\"\"$ to $\"\"$ is quadrant IV.

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The angle $\"\"$ is between $\"\"$ and $\"\"$ .

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So it is in quadrant I.

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$\"\"$

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(b).

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The angle is $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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Thus, the angle is $\"\"$ .

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The angle $\"\"$ is between $\"\"$ and $\"\"$ .

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So it is in quadrant III.

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$\"\"$

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(a) The angle $\"\"$ is in Quadrant I.

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(b) The angle $\"\"$ is in Quadrant III.