$\"\"$

(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 $\"\"$ and $\"\"$ .

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

(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 $\"\"$ and $\"\"$ .

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

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

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