Question

How do you determine the quadrant in which `-1` radians lies?

Answer 1

IVth Quadrant

Explanation:

To be clear about what is a radian, remember `pi` radians, or 3.14 radians equal to `180^o`. Thus 1 radians is about `57.32^o`.

Now move clockwise , from the initial position of `0^o` or 0 rad to record `-57.32^o`, which would clearly be confined in the IVth Quadrant