Ruler and Compass Construction 5
Equilateral Triangle on a Given Segment

1. Circle center A, through B
2. Circle center B, through A
3. Intersection point C
4. Triangle sides AB, BC
Why it works: The three edges all have the same length, hence the triangle is equilateral.
Back to constructions page
Next construction
Previous construction
Susquehanna University assumes no responsibility for the content of this personal website. Please read the disclaimer.