First, I created circle A. Then made a point and labeled it B in the circle. Then, I drew a line that connects point A and B. I marked the point of intersection between circle A and line AB and labeled it D. Then, I created circle D with the compass tool having the same radius as circle A. With the intersecting tool, I indicated the points of intersection between circle A and D. Using the segment tool I connected lines BE, BF, and EF. Triangle BEF is an equilateral triangle.