# The function that models the radius r of a circle in terms of its area. ### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071 ### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

#### Solutions

Chapter 2, Problem 9P
To determine

## To find: The function that models the radius r of a circle in terms of its area.

Expert Solution

The function that models area of given rectangle is Aπ .

### Explanation of Solution

Area of a circle is,

A=πr2

Algebraic form of the given information is shown below.

 In Words In Algebra Area πr2 Radius r

Use the information in the table and model the function in terms of r .

A=πr2A=πr(A)[Squareroot]Aπ=r(A)

Hence, the function which model area in terms of radius is Aπ .

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