<s id="A18-2.37.01">37 We want to prove the same for the pentagon <abgde>.</s>
<s id="A18-2.37.02">Let us draw <be> and determine the center of gravity of the triangle <abe>; let it fall on point <z>; let the center of gravity of the quadrangle <bgde> be at point <h>.</s>
<s id="A18-2.37.03">Let us connect the two points <z> and <h> and divide the line <zh> in two parts so that <hq> relates to <qz> like the weight of the triangle <abe> to the weight of the quadrangle <bgde>, then the point <q> is the center of gravity of the figure <abgde>.</s>
<s id="A18-2.37.04">We have to imagine it the same way for all polygons.</s>