Question

What is the length of a rectangle whose preimeter is p, if the width is 6 express using algebra

Answer 1

`l=(p)/(2)-6`

Explanation:

Given that,

The perimeter of a rectangle = p

Width = 6

We need to find the length of the rectangle.

The formula for the perimeter of a rectangle is given by :

`p=2(l+b)`

l is length

Put b = 6

So,

`p=2(l+6)\\\\(p)/(2)=l+6\\\\l=(p)/(2)-6`

So, the required length is equal to
`(p)/(2)-6`.