 Since the length of one side of a polygon is less than or equal to the sum of the lengths of the other sides, it follows that the length of P is less than or equal to the length of P', ie s(P)^.  Transport Phenomenaby Henrik Smith, Henning Højgaard Jensen - 1989 - 431 pagesSnippet view - About this book
 | Euclides - 1852 - 152 pages
...29. 13. The diameters of a parallelogram bisect each other. Use I. 34. I. 29., and I. 26. A 14. Any one side of a polygon is less than the sum of the remaining sides. This follows from I. 20. BOOK I. 15. The straight line which bisects the exterior... | |
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