If a straight line be drawn from the ends of a straight line, it will be a triangle.
Father of geometry
Paraphrased from implications within 'Elements', not a direct definition.
c. 300 BCE
Found in 1 providers: grok
Cross Reference
1 source
"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."
Strange & Unusual"The extremities of a line are points."
Strange & Unusual"What has been affirmed without proof can also be denied without proof."
Strange & Unusual"Parallelograms which are on the same base and in the same parallels are equal to one another."
Strange & Unusual"A figure is that which is contained by any boundary or boundaries."
Strange & UnusualPremium quality, printed on demand. Ships worldwide.
Don't see what you're looking for? Email us for custom products
