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Similar triangles and the Cosine Rule

Published online by Cambridge University Press:  23 January 2015

King-Shun Leung
King-Shun Leung*
Affiliation:
Department of Mathematics and Information Technology, The Hong Kong Institute of Education10 Lo Ping Road, Tai Po, Hong Konge-mail:, [email protected]
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Abstract

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Type
Teaching Notes
Information
The Mathematical Gazette , Volume 96 , Issue 535 , March 2012 , pp. 169 - 172
Copyright
Copyright © The Mathematical Association 2012

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References

1. Maor, E., The Pythagorean theorem, Princeton University Press (2007) pp.41–42.Google Scholar
2. Siu, M. K., Mathematical proofs (in Chinese), Dalian University of Technology Press (2008) pp. 70–74.Google Scholar
3. http://en.wikipedia.org/wiki/Law_of_cosines (browsed on 12 May 2011)Google Scholar