The tangent of the given angles are the ratios <em>y</em> to the <em>x</em> coordinate of
the point of the terminal side on the unit circle.
The correct options are;
<h3>How to find the points on the unit circle</h3>
The tangent of an angle is given as follows;

First angle
An angle given is; 
Therefore;

The above result can be obtained as follows;

Which is obtained when we have;

Therefore
The required coordinates is therefore;
Second angle
The angle,
, gives; 
The above value can be obtained as follows;

Which gives;
Third angle
The angle 210° gives; tan(210°) =
, which can be obtained as follows;

Therefore;
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