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101.38 Metric relations in crossed cyclic quadrilaterals

Published online by Cambridge University Press:  16 October 2017

Martin Josefsson
Martin Josefsson*
Affiliation:
Västergatan 25d, 285 37 Markaryd, Sweden e-mail: martin.markaryd@hotmail.com
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The Mathematical Gazette , Volume 101 , Issue 552 , November 2017 , pp. 499 - 502
Copyright
Copyright © Mathematical Association 2017 

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References

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2. Alsina, C. and Nelsen, R. B., On the diagonals of a cyclic quadrilateral, Forum Geom. 7 (2007) pp. 147–149.Google Scholar
3. Coxeter, H. S. M. and Greitzer, S. L., Geometry revisited, Math. Ass. Amer. (1967).Google Scholar
4. de Villiers, M., Slaying a geometrical monster: finding the area of a crossed quadrilateral, Learning and Teaching Mathematics 18 (June 2015) pp. 23–28. Also available at http://dynamicmathematicslearning.com/crossed-quad-area.pdf Google Scholar
5. Hoehn, L., Circumradius of a cyclic quadrilateral, Math. Gaz. 84 (March 2000) pp. 69–70.Google Scholar