A circle is a plane figure contained by one line such that all the straight lines falling upon it from one point among those lying within the figure are equal to one another.
— Euclid Ancient

Father of geometry

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Details

Context

Definition 15, Book I of 'Elements'

Date / Period

c. 300 BCE

Category

Strange & Unusual

Source

https://en.wikiquote.org/wiki/Euclid

Verification

Confirmed

Explanation

Found in 2 providers: grok,deepseek

Method

Cross Reference

Sources Checked

2 sources

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