👉 The term "sectroid" is a mathematical concept in geometry that refers to a polyhedron formed by three line segments that intersect at a single point. This point, called the "centroid," is also known as the center of gravity of the polygon. In a plane triangle, the centroid can be found using the following formula: \[ \text{Centroid} = \frac{1}{3}(\mathbf{a}_1 + \mathbf{a}_2 + \math
