Triangle Divided Into Thirds. This leaves three constructions to be determined, the second, fourth, and sixth in the sequence above. Divide it into four similar trapeziums.
By this concept, g being the centroid, in figure below ga, gb and gc divide the triangle into 3 equal parts. Second, note that each of the three small triangles were similar to the original triangle, congruent to each other, and 1/9 the area of the the original triangle. This video shows you how, using a very old and useful technique, to divide a square, or a rectangle, in various perspectives, into perfect thirdsi hope this.
