# Topics in Elementary Geometry

• Authors
• O. Bottema
Textbook

1. Front Matter
Pages 1-8
2. O. Bottema, Reinie Erne
Pages 1-6
3. O. Bottema, Reinie Erne
Pages 1-5
4. O. Bottema, Reinie Erne
Pages 1-6
5. O. Bottema, Reinie Erne
Pages 1-3
6. O. Bottema, Reinie Erne
Pages 1-2
7. O. Bottema, Reinie Erne
Pages 1-4
8. O. Bottema, Reinie Erne
Pages 1-4
9. O. Bottema, Reinie Erne
Pages 1-5
10. O. Bottema, Reinie Erne
Pages 1-3
11. O. Bottema, Reinie Erne
Pages 1-3
12. O. Bottema, Reinie Erne
Pages 1-4
13. O. Bottema, Reinie Erne
Pages 1-5
14. O. Bottema, Reinie Erne
Pages 1-7
15. O. Bottema, Reinie Erne
Pages 1-7
16. O. Bottema, Reinie Erne
Pages 1-3
17. O. Bottema, Reinie Erne
Pages 1-4
18. O. Bottema, Reinie Erne
Pages 1-2
19. O. Bottema, Reinie Erne
Pages 1-2
20. O. Bottema, Reinie Erne
Pages 1-5
21. O. Bottema, Reinie Erne
Pages 1-7
22. O. Bottema, Reinie Erne
Pages 1-3
23. O. Bottema, Reinie Erne
Pages 1-4
24. O. Bottema, Reinie Erne
Pages 1-4
25. O. Bottema, Reinie Erne
Pages 1-5
26. O. Bottema, Reinie Erne
Pages 1-2
27. O. Bottema, Reinie Erne
Pages 1-3
28. O. Bottema, Reinie Erne
Pages 1-3
29. Back Matter
Pages 1-15

### Introduction

This small book has for a long time been a unique place to find classical results from geometry, such as Pythagoras' theorem, the nine-point circle, Morley's triangle, Poncelet's polygons, and many other subjects. In addition, this book contains recent, geometric theorems which have been obtained in this classical field over the past years. There are 27 independent chapters on a wide range of topics in elementary plane Euclidean geometry, at a level just beyond what is usually taught in a good high school or college geometry course. The selection of topics is intelligent, varied, and stimulating. In a small space the author provides many thought-provoking ideas. This book will fit in well with the increasing interest for geometry in research and education. This book was originally published in Dutch, and this will be the first English translation. This translation also includes a new foreword by Robin Hartshorne.

"This highly entertaining book will broaden the reader's historical perspective in an enlightening manner and it provides attractive topics for classroom discussion." -Hendrik Lenstra, Universiteit Leiden

### Keywords

Area DEX Pascal addition boundary element method education field function geometry median polygon review selection time university