In isosceles triangles the angles at the base are equal to one another, and, if the equal straight lines be produced further, the angles under the base will be equal to one another.
Father of geometry
Proposition 5 (Pons Asinorum), Book I of 'Elements'
c. 300 BCE
Found in 1 providers: grok
Cross Reference
1 source
"The greatest common divisor of two numbers can be found by successive division."
Strange & Unusual"A straight line is a line which lies evenly with the points on itself."
Shocking"Things which coincide with one another are equal to one another."
Strange & Unusual"Sire, there is no royal road to geometry."
Shocking"To bisect a given rectilinear angle."
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