How do I find an edge of a triangle?

To find an edge of a triangle, you can use the distance formula if you have the coordinates of the triangle's vertices. For vertices A(x1, y1) and B(x2, y2), the length of edge AB can be calculated using the formula: ( \text{Distance} = \sqrt{(x2 - x1)^2 + (y2 - y1)^2} ). Alternatively, if you know the triangle's angles and one side length, you can apply the Law of Sines or Law of Cosines to find the lengths of other edges.