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"Mary"
Posts:
3
Registered:
3/11/10


Interesting geometry puzzle
Posted:
Oct 27, 2010 12:40 AM


> Subject: Re: Interesting geometry puzzle > > >> Sujeet, >> >> Thank you for the interesting problem. It is good to hear from you again, >> to >> know that you are still actively investigating geometry. >> >> Both Avni Pilana's and Narasinham's solutions were clear, but like John >> Benson I was interested in a solution that did not involve trigonometry, >> as >> are you. >> >> Perhaps I have not understood your construction, or perhaps there is a >> misprint. It seems to me that CD is clearly not equal to AC, as stated in >> the 5th line of your response. >> >> When you use ASA congruence condition, what angles and which side are you >> using? I see that the triangles are congruent, but I do not see how you >> arrive at the conclusion. Can you or someone help me? >> >> I find your quest for the meaning of "Pure Geometrical Solutions" also >> interesting and provocative. Can this problem even be given in pure >> geometry, since 10, 20, and 70 degree angles cannot be constructed? >> >> Thank you for any response. >> Mary Krimmel >> mary@krimmel.net >

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