An elementary theorem in geometry whose name means "asses' bridge," perhaps in reference to the fact that fools would be unable to pass this point in their geometric studies. The theorem states that the angles at the base of an isosceles triangle (defined as a triangle with two legs of equal length) are equal and appears as the fifth proposition in Book I of Euclid's Elements.
Pons Asinorum
See also
Ass and Mule Problem, ASS Theorem, Isosceles Triangle, Pythagorean TheoremExplore with Wolfram|Alpha
References
Dunham, W. Journey through Genius: The Great Theorems of Mathematics. New York: Wiley, p. 38, 1990.Wells, D. The Penguin Dictionary of Curious and Interesting Geometry. London: Penguin, pp. 193-194, 1991.Referenced on Wolfram|Alpha
Pons AsinorumCite this as:
Weisstein, Eric W. "Pons Asinorum." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PonsAsinorum.html