“An adventure into the awe-inspiring realms of the triangle. [Posamentier and Lehmann] show us that a study of this basic geometric figure reveals a compelling and natural aesthetic beauty, and in so doing they unravel remarkable relationships and mathematical phenomena. The authors provide examples that illustrate the fascination that mathematicians and philosophers have had with the triangle for over two thousand years. . . . Their book forms a worthy and practical adjunct to this inspiring corpus of thought.”
TOM BREEN, executive chairman, Breen Property Group, Australia
“This book exposes some of the most amazing relationships involving triangles and their parts. With just some recollection of high-school geometry, the reader will be guided through many surprising triangle relationships that could rekindle for many the beauty of mathematics. Readers will surely find this book entertaining because, through simple language, wonders of geometry emerge.”
DR. CHARLOTTE K. FRANK, senior vice president, Research and Development, McGraw-Hill Education
“This wonderful book intelligibly presents a plethora of triangle characteristics and relationships that really makes one appreciate this basic geometric figure. A must-read for anyone curious about what was missed in high-school geometry.”
DR. ANTON DOBART, director general,
Federal Ministry for Education, the Arts and Culture, Vienna, Austria
“This is a book that glows with the excitement to be found in geometry. At times quite demanding, it nevertheless urges the reader to learn more of the wonders of the triangle and the magic to be found in its many secrets. I would recommend it to any teacher of math as a lesson in how students should be taught to love the world of mathematical learning.”
BARONESS PAULINE PERRY, former president of Lucy Cavendish College,
Cambridge University, England
“The authors surely know how to make thinking about the secrets of geometry enticing and addictive, and you may end up drawing triangles on paper napkins to think about them and to explain to your friends. Geometry is fun, satisfaction guaranteed.”
DR. PETER SKALICKY, emeritus professor of physics, University of Technology,
Vienna, Austria
“This paean to triangles will enlighten teachers, capture the attention of students, intrigue artists, and fascinate curious laypersons like me. The reader . . . is sure to embark on an irresistible exploration, where history, aesthetics, and mathematical concepts are brought together thanks to a study of triangles in all their kaleidoscopic richness and wondrous mix of complexity and obviousness.”
ANTHONY VISCUSI, retired corporate executive
Binding: Hardcover
Pages: 387 (illustrations)
ISBN: 978-1-61614-587-3
Shipping Weight: 2lbs
Author Bio:
Alfred S. Posamentier (River Vale, NJ) is the dean of the School of Education and professor of mathematics education at Mercy College in Dobbs Ferry, NY. He was formerly the dean of the School of Education and professor of mathematics education at the City College of New York. He has published over fifty books in the area of mathematics and mathematics education, including The Pythagorean Theorem: The Story of Its Power and Beauty; Math Charmers: Tantalizing Tidbits for the Mind; and (with Ingmar Lehmann) The Glorious Golden Ratio; Mathematical Amazements and Surprises; The Fabulous Fibonacci Numbers; and Pi: A Biography of the World’s Most Mysterious Number.
Ingmar Lehmann (Berlin, Germany) is on the mathematics faculty at Humboldt University in Berlin. He also heads the Berlin Mathematics Student Society for gifted secondary school students. A prolific author of books on mathematics and mathematics education, he is the coauthor with Alfred S. Posamentier of The Glorious Golden Ratio; Mathematical Amazements and Surprises; The Fabulous Fibonacci Numbers; and Pi: A Biography of the World’s Most Mysterious Number.
