Last Updated
：2025/12/06
Thales's theorem
Proper noun
Japanese Meaning
(幾何学) 円の上にある互いに異なる3点 A, B, C において、もし線分ACが直径ならば、角ABCは直角であるという定理。
Quizzes for review
(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.
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Thales's theorem
During the geometry lecture, the professor invoked Thales's theorem to show that when A, B, and C lie on a circle and AC is a diameter, angle ABC is a right angle.
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During the geometry lecture, the professor invoked Thales's theorem to show that when A, B, and C lie on a circle and AC is a diameter, angle ABC is a right angle.
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