Question

the length of a rectangle is 20 metre more than its width if the perimeter of the rectangle is 100 metre then find the length and breadth of rectangle​

Answer 1

Here is your answer mate

Answer 2

Answer:

Length is 35 meter

Width is 15 meter

Step-by-step explanation:

Given -

The length of a rectangle is 20 meter more than its width.

Perimeter of the rectangle is 100 meter

To find -

The length and width of rectangle​.

Solution -

Let,

Width is $x$

The length of a rectangle is 20 meter more than its width.

Write it as ,

Length(L) = $20+x$ meter

Width(W) = $x$ meter

As we know that,

Perimeter of rectangle = $2(L+W)$

Put the given value in these equation

$100 = 2( 20+x+x)$

$100=2(20+2x)$

$100= 40+4x$

$100-40 = 4x$

$60 =4x$

Divide both side by 4 we get

$x=15$

Put the value of x and find the value of length and breath

Length(L) = $20+x$ meter = $20+15 = 35$ meter

Width(W) = $x$ meter = $15$ meter

∴ Length is 35 meter

Width is 15 meter.