Similar triangles are to one another in the duplicate ratio of their corresponding sides.
Father of geometry
Theorem 19, Book VI of 'Elements'
c. 300 BCE
Found in 1 providers: grok
Cross Reference
1 source
"Things which coincide with one another are equal to one another."
Strange & Unusual"A plane angle is the inclination of the lines to one another, when two lines meet one another, but are not in the same straight line."
Shocking"Parallel straight lines are straight lines which, being in the same plane and being produced indefinitely in both directions, do not meet one another in either direction."
Strange & Unusual"What advantage shall I get by learning these things?"
Shocking"A line is breadthless length."
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