Thales's theorem

English

Etymology

Generally attributed to Thales of Miletus.

Proper noun

Thales's theorem

Thales's theorem: if AC is a diameter and B is a point on the diameter's circle, the angle ABC is a right angle.

1. (geometry) A theorem stating that if A, B, and C are distinct points on a circle where the line AC is a diameter, the angle ABC is a right angle.
2. (geometry) Synonym of intercept theorem

Translations

theorem

• Finnish: Thaleen lause

intercept theorem — see intercept theorem