Question

the area of a rectangular piece of cardboard is 36 sq.cm and its length is 9cm. fid the width of the cardboard

Answer 1

Answer:

The width of the rectangular piece of cardboard will be 4 cm.

Step-by-step explanation:

Given: The area of a rectangular piece of cardboard is 36 sq. cm, and its length is 9cm.

We have to find the width of the cardboard.

• As we know, the area of a rectangle is calculated by a formula:

        $A=l\times w$

Where,

l = length,

w = width

We are solving in the following way:

We have,

The area of a rectangular piece of cardboard is 36 sq. cm, and its length is 9cm.

Then, the width of the rectangular piece of cardboard will be:

$=>A=l\times w\\\=>36=9\times w\\\\=>\frac{36}{9} =w\\\\=>w=4$

Hence, the width of the rectangular piece of cardboard will be 4 cm.

Answer 2

Answer:

The width of cardboard is $4cm$

Step-by-step explanation:

In accordance with the information provided in the question,

Given the data in question : the area of a rectangular piece of cardboard is 36 sq.cm  and its length is 9cm.

We have find the value of"  width of the cardboard in the above question.

Here we will use area of rectangle formula

$A=l\times w$

Where $A=$area

$L=$length

$W=$ width

So, use formula

[tex]A=l\times w\\ 36=9\times w[/tex]

Where,

[tex]W=\frac{l}{a} \\ W=\frac{36}{9} \\ W=4 cm[/tex]

Hence the width of cardboard is $4cm$