This proof serves as an excellent example of out-of-the-box thinking and the application of the principle of symmetry. Rather than focusing solely on one right-angled triangle, we generated a second right-angled triangle by horizontally flipping and copying the original one along one of its sides. Next, we used these two triangles to form a larger triangle. Then, utilizing this shape composed of multiple right-angled triangles, we proved Pythagoras' theorem using the geometric series of trigonometric ratios and the sine theorem.