Answer
The polar equation of the given polar curve is $r=2\sin \theta $.
Work Step by Step
From the given polar curve
And,
For, $\theta =0$
$r=0$
And,
For, $\theta =\frac{\pi }{2}$
$r=2$
By applying the above condition, it is concluded that the polar equation for the graph will be $r=2\sin \theta $.
