PeterBushMan Posted June 24, 2022 Share Posted June 24, 2022 (edited) have a look at the short paper attached. The number of the equal triangles should be 1+n/(n/2), if n=10, it is 55. Of you also count those up side down equal triangles, it should be n^2, if n = 10, it is 100. Then what is the author talking about? Edited June 24, 2022 by PeterBushMan Link to comment Share on other sites More sharing options...
studiot Posted June 24, 2022 Share Posted June 24, 2022 2 hours ago, PeterBushMan said: The number of the equal triangles should be 1+n/(n/2), if n=10, it is 55. ... Then what is the author talking about? What are you talking about ? [math]1 + n/\left( {n/2} \right) = 1 + n \times \frac{2}{n} = 1 + 2 = 3[/math] Link to comment Share on other sites More sharing options...
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