This is the step-by-step, printable version. If you PRINT this page, any ads will not be printed.
See also the animated version.
After doing this | Your work should look like this |
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Start with the line segment AB which is the length of the sides of the desired equilateral triangle. | |
1. Pick a point P that will be one vertex of the finished triangle. | |
2. Place the point of the compasses on the point A and set its drawing end to point B. The compasses are now set to the length of the sides of the finished triangle. Do not change it from now on. | |
3. With the compasses' point on P, make two arcs, each roughly where the other two vertices of the triangle will be. | |
4. On one of the arcs, mark a point Q that will be a second vertex of the triangle. It does not matter which arc you pick, or where on the arc you draw the point. | |
5. Place the compasses' point on Q and draw an arc that crosses the other arc, creating point R. | |
6. Using the straightedge, draw three lines linking the points P,Q and R. | |
7. Done. The triangle PQR is an equilateral triangle. Its side length is equal to the distance AB. |