   Chapter 8.4, Problem 3E 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

Find the approximate circumference and area of a circle whose radius has length 10 1 2 in. Use π = 22 7 .

To determine

To Find:

The circumference and area of the circle whose radius has length 1012 in.

Explanation

The circumference of a circle is C=2πr.

Here, the radius of the circle is 1012or212 in and the value of π is 227.

Therefore, C=2227212=2222172=66.

The circumference of a circle is 66 in.

The area of a circle is A=πr2

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