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  • © 2009

How Does One Cut a Triangle?

Authors:

  • Aims to inspire talented students at various levels and other mathematicians interested in similar problems

  • Offers insight on different problem solving methods used to attack the problem, “How Does One Cut a Triangle?”

  • Presents example problems and solutions as well as open problems

  • Engages a general audience

  • Includes supplementary material: sn.pub/extras

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Table of contents (16 chapters)

  1. Front Matter

    Pages 1-25
  2. The Original Book

    1. Front Matter

      Pages 1-1
    2. How Does One Cut a Triangle? I

      • Alexander Soifer
      Pages 15-23
    3. Excursions in Algebra

      • Alexander Soifer
      Pages 25-36
    4. How Does One Cut a Triangle? II

      • Alexander Soifer
      Pages 37-39
    5. Excursion in Trigonometry

      • Alexander Soifer
      Pages 41-45
    6. Is There Anything Beyond the Solution?

      • Alexander Soifer
      Pages 47-50
    7. Pursuit of the Best Result

      • Alexander Soifer
      Pages 51-63
    8. Convex Figures and the Function S(F)

      • Alexander Soifer
      Pages 65-106
    9. Paul Erdős: Our Joint Problems

      • Alexander Soifer
      Pages 107-120
    10. Convex Figures and Erdőos’ Function S α (F)

      • Alexander Soifer
      Pages 121-124
  3. Developments of the Subsequent 20 Years

    1. Front Matter

      Pages 126-126
    2. An Alternative Proof of Grand Problem II

      • Alexander Soifer
      Pages 127-128
    3. Miklós Laczkovich on Cutting Triangles

      • Alexander Soifer
      Pages 129-135
    4. Matthew Kahle on the Five-Point Problem

      • Alexander Soifer
      Pages 137-142
    5. Coffee Hour and the Conway–Soifer Cover-Up

      • Alexander Soifer
      Pages 147-156
    6. Farewell to the Reader

      • Alexander Soifer
      Pages 157-159
  4. Back Matter

    Pages 1-13

About this book

This second edition of Alexander Soifer’s How Does One Cut a Triangle? demonstrates how different areas of mathematics can be juxtaposed in the solution of a given problem. The author employs geometry, algebra, trigonometry, linear algebra, and rings to develop a miniature model of mathematical research.

How Does One Cut a Triangle? contains dozens of proofs and counterexamples to a variety of problems, such as a pool table problem, a fifty-dollar problem, a five-point problem, and a joint problem. By proving these examples, the author demonstrates that research is a collection of mathematical ideas that have been developed throughout the course of history.

The author brings mathematics alive by giving the reader a taste of what mathematicians do. His book presents open problems that invite the reader to play the role of the mathematician. By doing so, the author skillfully inspires the discovery of uncharted solutions using his solutions as a guide.

Reviews

From the reviews of the second edition:

“In the second edition of an engagingly written book … addressed to bright high school students and undergraduates, whose contributions are very nicely incorporated into the narrative, the author presents problems belonging to discrete and combinatorial geometry.” (Victor V. Pambuccian, Zentralblatt MATH, Vol. 1180, 2010)

“How does one cut a triangle? is a charming little book intended for that most rare of readers: one with little or no knowledge of mathematics above the high school level … . For such a reader, this book constitutes an opportunity to learn a number of mathematical tools and problem-solving techniques. … overall there is much in this book to commend it to both expert and novice … .”­­­ (Michael Weiss, Mathematical Reviews, Issue 2011 c)

Authors and Affiliations

  • Dept. Mathematics, Art History &, University of Colorado, Colorado Springs, U.S.A.

    Alexander Soifer

Bibliographic Information

  • Book Title: How Does One Cut a Triangle?

  • Authors: Alexander Soifer

  • DOI: https://doi.org/10.1007/978-0-387-74652-4

  • Publisher: Springer New York, NY

  • eBook Packages: Mathematics and Statistics, Mathematics and Statistics (R0)

  • Copyright Information: Springer-Verlag New York 2009

  • Softcover ISBN: 978-0-387-74650-0Published: 10 September 2009

  • eBook ISBN: 978-0-387-74652-4Published: 25 August 2009

  • Edition Number: 2

  • Number of Pages: XXX, 174

  • Number of Illustrations: 83 b/w illustrations

  • Additional Information: Originally published by Soifer, Alexander, 1990

  • Topics: Algebra, Geometry, Combinatorics, Mathematics, general

Buy it now

Buying options

eBook USD 39.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 49.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Other ways to access