SOLUTION: Hello. Can someone help me about how did Lambert tried to disprove the parallel postulate of Euclid? And explain how did he came up with the Lamberts Quadrilateral? Thank you

Question 1145141: Hello. Can someone help me about how did Lambert tried to disprove the parallel postulate of Euclid? And explain how did he came up with the Lamberts Quadrilateral? Thank you

Answer by ikleyn(52949) (Show Source): You can put this solution on YOUR website!
.

(a) How did Lambert tried to disprove the parallel postulate of Euclid

    Read this article from the Internet

        https://www.math.upenn.edu/~kazdan/proof/notes/parallel-postulateGrabiner2009.pdf


    There is nothing more enjoyable than to read from good sources (!)

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