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Approximating Pi with the Golden Ratio

Stacy L. Linn, David K. Neal 

March 2006, Volume 99, Issue 7, Page 472

Abstract:
This article employs the Archimedean method of estimating the value of pi within an inscribed pentagon. We show how to write these approximations in terms of the golden ration. The article includes excercises and solutions for better understanding.

Keywords:
Article
Grades 9-12
Math Coordinator / Coach
Geometry & Measurement
Teacher
Trigonometry
Problems
Problem Solving / Problem Posing
Reasoning and Proof
Theory