An Approximation of π by using the law of cosines

Joardar, Bodhideep (2017) An Approximation of π by using the law of cosines. At Right Angles, 6 (3). pp. 43-45.

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The approximation of π is a popular pastime of students of mathematics and I have started with the familiar age-old way, of fitting a regular polygon tightly in a circle of radius r.

Item Type: Articles in APF Magazines
Authors: Joardar, Bodhideep
Document Language:
Uncontrolled Keywords: π, Approximation, Circle, Polygon, Circumference, Law of cosines, Difference of cosines, Limits
Subjects: Natural Sciences > Mathematics
Divisions: Azim Premji University > University Publications > At Right Angles
Full Text Status: Public
Publisher URL:

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