Consider tracing this triangle onto another page. This way, you can start fresh with a clean shape. If you need a bigger or a smaller triangle, repeat the process but adjust the length of the original line segment. The longer the sides, the bigger the triangle!
If you use a CD as your object: imagine an equilateral triangle that fits into the top-right quadrant of a CD.
If you have a ruler: simply measure the diameter of the object and draw a line that is half as long. If you don’t have a ruler: place the circular object onto a sheet of paper, then carefully trace the circumference with your pencil. Remove the object, and you should have a perfect circle. Use a straight edge to draw a line across the exact center of the circle: the point that is completely equidistant from any point around the circumference of the circle.
