$\"\"$

(a).

The angle is $\"\"$ .

Given angle is negative angle.So, negative angles are generated by clock wise rotation.

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

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

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

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

$\"\"$

The angle is $\"\"$ .

Just compare the fraction with the $\"\"$ to the fractions.

The fraction $\"\"$ is between 0 and $\"\"$ .

So it is in quadrant IV. $\"\"$

(b).

The angle is $\"\"$ .

Given angle is negative angle.So, negative angles are generated by clock wise rotation.

Just compare the fraction with the $\"\"$ to the fractions.

The fraction $\"\"$ is between 0 and $\"\"$ .

So it is in quadrant IV. $\"\"$

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

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