The Pythagorean theorem, a cornerstone of mathematics for millennia, provides a method for determining unknown sides in right-angled triangles using the formula a² + b² = c². Its applications extend ...

You’ll learn how these functions relate to the ratios of sides in a right triangle and how to use them to solve for unknown angles or side lengths. The video also introduces the reciprocal ...

We know all four shapes are the same before and after, but we assumed that the large right triangle also stayed the same size and shape. This assumption was our error! It turns out that the “before” ...