I am working with parametric equations and need to find how to make this shape.?

starting with t = 0, and following the path counterclockwise, you get back to your starting point, (3,0) in 10 steps, but in doing so you make 3 orbits around the origin, so 3(360)/10 = 108� for t-step, with t-min 0 and t-max 1080�. by the way, the picture has rotational symmetry (equal width and height), so your 2nd equation should be y = 3sin(t), otherwise the picture is squished vertically.