Question

The width of a rectangle measures (3.1s – 1.6) centimeters, and its length

Answer 1

Answer:

Expression for perimeter of rectangle is:

$\bold{Perimeter = (20.6s-12.4)\ centimeters}$

Step-by-step explanation:

Width of rectangle is given as $( 3.1 s - 1.6 )$ centimeters and

length  of the rectangle is given as $(7.2s - 4.6)$ centimeters.

To find:

The expression to represent the perimeter of rectangle in centimeters.

Solution:

First of all, let us have a look at the formula to calculate the perimeter of a rectangle.

Perimeter of a polygon is equal to sum of all the sides.

In rectangle, we have a total of 4 sides, 2 sides equal to the width and 2 sides are equal to the length of rectangle.

Therefore, perimeter of a rectangle is equal to twice the sum of width and length of the rectangle.

So, formula:

$Perimeter = 2(l+w)$

Where $l$ is the length of rectangle and

$w$ is the width of rectangle.

Putting the values of length and width as given in the question statement to find its perimeter:

$Perimeter = 2((3.1s-1.6) +(7.2s-4.6))\\\Rightarrow Perimeter = 2(10.3s-6.2)\\\Rightarrow \bold{Perimeter = (20.6s-12.4)\ centimeters}$