Let the following be postulated:
Father of geometry
Opening statement of the Postulates section in 'Elements', Book I
c. 300 BCE
Found in 1 providers: grok
Cross Reference
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"An obtuse angle is an angle greater than a right angle."
Strange & Unusual"Further, of trilateral figures, a right-angled triangle is that which has a right angle, an obtuse-angled triangle that which has an obtuse angle, and an acute-angled triangle that which has its three…"
Strange & Unusual"An acute angle is an angle less than a right angle."
Strange & Unusual"If equals be added to equals, the wholes are equal."
Strange & Unusual"What do I gain by learning these things?"
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