   Chapter 8.4, Problem 8E 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 exact length of the radius and the exact circumference of a circle whose area is: a) 36π m2 b) 6.25π ft2

To determine

a)

To Find:

The length of the radius and the circumference of the circle whose area is 36π m2.

Explanation

It is given that the area of the circle is 36π m2.

The area of the circle is A=πr2.

Therefore, 36π=πr2.

Now it becomes, r2=36</

To determine

b)

To Find:

The length of the radius and the circumference of the circle whose area is 6.25 ft2.

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