n centroid calculates the geometric center (or: center
            of mass) of a geometry. Reasons to specify a strategy include: use another
            coordinate system for calculations; construct the strategy beforehand
            (e.g. with the radius of the Earth); select a strategy when there are
            more than one available for a calculation.
          </p>
<h6>
<a name="geometry.reference.algorithms.centroid.centroid_3_with_strategy.h1"></a>
            <span><a name="geometry.reference.alg