The secrets of triangles : a mathematical journey

著者

    • Posamentier, Alfred S.
    • Lehmann, Ingmar

書誌事項

The secrets of triangles : a mathematical journey

by Alfred S. Posamentier and Ingmar Lehmann

Prometheus Books, 2012

  • cloth : alk. paper

大学図書館所蔵 件 / 2

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注記

Includes bibliographical references (p. 367-368) and index

収録内容

  • Introduction to the triangle
  • Concurrencies of a triangle
  • Noteworthy points in a triangle
  • Concurrent circles of a triangle
  • Special lines of a triangle
  • Useful triangle theorems
  • Areas of and within triangles
  • Triangle constructions
  • Inequalities in a triangle
  • Triangles and fractals

内容説明・目次

内容説明

Everyone knows what a triangle is, yet very few people appreciate that the common three-sided figure holds many intriguing "secrets." For example, if a circle is inscribed in any random triangle and then three lines are drawn from the three points of tangency to the opposite vertices of the triangle, these lines will always meet at a common point - no matter what the shape of the triangle. This and many more interesting geometrical properties are revealed in this entertaining and illuminating book about geometry. Flying in the face of the common impression that mathematics is usually dry and intimidating, this book proves that this sometimes-daunting, abstract discipline can be both fun and intellectually stimulating. The authors, two veteran math educators, explore the multitude of surprising relationships connected with triangles and show some clever approaches to constructing triangles using a straightedge and a compass. Readers will learn how they can improve their problem-solving skills by performing these triangle constructions. The lines, points, and circles related to triangles harbor countless surprising relationships that are presented here in a very engaging fashion. Requiring no more than a knowledge of high school mathematics and written in clear and accessible language, this book will give all readers a new insight into some of the most enjoyable and fascinating aspects of geometry.

「Nielsen BookData」 より

詳細情報

  • NII書誌ID(NCID)
    BB13066396
  • ISBN
    • 9781616145873
  • LCCN
    2012013635
  • 出版国コード
    us
  • タイトル言語コード
    eng
  • 本文言語コード
    eng
  • 出版地
    Amherst, N.Y.
  • ページ数/冊数
    387 p.
  • 大きさ
    24 cm
  • 分類
  • 件名
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