Publication Date
| In 2025 | 0 |
| Since 2024 | 0 |
| Since 2021 (last 5 years) | 0 |
| Since 2016 (last 10 years) | 0 |
| Since 2006 (last 20 years) | 1 |
Descriptor
| Demonstrations (Educational) | 1 |
| Equations (Mathematics) | 1 |
| Geometric Concepts | 1 |
| Intellectual History | 1 |
| Mathematical Logic | 1 |
| Plane Geometry | 1 |
| Science Process Skills | 1 |
Source
| Mathematics and Computer… | 1 |
Author
| Heng, Phongthong | 1 |
| Osler, Thomas J. | 1 |
Publication Type
| Journal Articles | 1 |
| Reports - Descriptive | 1 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewed
Direct linkOsler, Thomas J.; Heng, Phongthong – Mathematics and Computer Education, 2007
The ancient Greek mathematicians sought to construct, by use of straight edge and compass only, all regular polygons. They had no difficulty with regular polygons having 3, 4, 5 and 6 sides, but the 7-sided heptagon eluded all their attempts. In this article, the authors discuss some cosine relations and the regular heptagon. (Contains 1 figure.)
Descriptors: Plane Geometry, Geometric Concepts, Equations (Mathematics), Mathematical Logic
