# The area of square with side x . ### 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 1.6, Problem 3E

(a)

To determine

## To fill: The area of square with side x.

Expert Solution

The area of square is x2 .

### Explanation of Solution

The side of square is x.

The formula to calculate area of square is,

Area=side×side=x×x=x2

Thus, the area of square is x2 .

(b)

To determine

### To fill: The area of rectangle with length l and width w.

Expert Solution

The area of rectangle is l×w .

### Explanation of Solution

The length of rectangle is l and width is w.

The formula to calculate area of rectangle is,

Area=length×width=l×w

Thus, the area of rectangle is l×w .

(c)

To determine

### To fill: The area of circle with radius r.

Expert Solution

The area of circle is πr2 .

### Explanation of Solution

The radius of circle is r.

The formula to calculate area of circle is,