Question

length of a rectangle is (x+y) and breadth is (x-y) then find the perimeter P in terms of x​

Answer 1

Length = (x+y)

Breadth = (x-y)

A.T.Q

2(L+B) = 2(x+y+x-y)

= 2 × 2x

= 4x

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Answer 2

Given,

The length of a rectangle = (x+y)

and the breadth of the rectangle = (x-y)

To find out,

The perimeter of the rectangle.

Solution:

Perimeter of rectangle = 2(l+b)

Where,

l = length of rectangle

b = breadth of rectangle

$Perimeter \: of \: rectangle \: = 2 \times (x + y)+(x - y)$

Perimeter of rectangle = 2x+2y+2x-2y

Perimeter of rectangle = 4x

Therefore the perimeter of rectangle is 4x.

Additional information:

Formulae:

Area of rectangle = length × breadth

Perimeter of rectangle = 2(length +breadth)