Bridge of asses Theorem

• Euclid wrote in his Euclidean Geometry, that his Fifth Proposition was named the Bridge of asses or in Latin ‘Pons Asinorum’.
• In Euclid’s ‘Elements’, his Fifth Proposition is that all the base angles are equal in an isosceles triangle.

Euclid

• Euclid was a Greek Mathematician considered to be the Father of Geometry, who lived in Alexandria around 300 BCE.
• His Bridges of Asses Theorum was later named as ‘Elefuga’ (escape from misery) by Roger Bacon (c. 1250 CE).