   Chapter 8.4, Problem 49E 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

A square has a length of 8.9 in for each side. Find the length, to the tenth of an inch for the radius of a circle that has the same area as that of the square.

To determine

To Find:

The length of a radius of the circle.

Explanation

The side length of the square is 8.9 in.

We know that the area of the square is A=s2.

Therefore, A=(8.9)2=79.21.

The area of the square is 79.21 in2.

It is given that the area of the square is same as the area of the circle.

Therefore, the area of the circle is 79.21 in2.

The area of the circle is A=πr2

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