   Chapter 8.4, Problem 39E Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

In exercises 34-45, use your calculator value of π unless otherwise stated. Round answers to two decimal places.Find the approximate perimeter of a regular polygon that has 20 sides if the length of its radius is 7 cm.

To determine

To Find:

The perimeter of a regular polygon that has 20 sides

Explanation

It is given that the polygon has 20 sides.

We know that, when the number of sides of a polygon (n) becomes larger and larger the perimeter of the regular polygon approaches the perimeter of the circle.

It means, PC.

Therefore, the perimeter of the polygon is C=2πr

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