What is the math for making a diamond that will make an 8-pointed star?
I'm math challenged... I want to make an octagon using triangles (that point toward the center of the octagon), then mirror image the triangle (so it becomes a diamond), and have a resulting star. How do I figure out what the length of the sides of the triangles should be? The short side of the triangle will make the octagon, and the other two sides of the triangle will be equal and longer. If I make the short side of the triangle, for example, 6", then what will be the length of the other two sides?