Question

the perimeter of the rectangle 18cm and breadth 12cm is equal to the perimeter of a square what is the length of the side of that square
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Answer 1

Step-by-step explanation:

Perimeter of rectangle = 2 × (l + b)

= 2 × ( 18 + 12 )

= 2 × 30

= 60 cm.

Perimeter of rectangle = perimeter of square

So, 60 = Perimeter of square

Perimeter of square = 4 × side

60 = 4 × side

60 ÷ 4 = side

15 = side

Therefore, side of square = 15 cm.

Answer 2

The side of the square is 15 cm  

Given:

The perimeter of the rectangle is 18 cm and the breadth of 12 cm is equal to the perimeter of a square  

To find:

The length of the side of that square

Solution:

Formula used:

Perimeter of Rectangle = 2 [ Length + Breadth ]

The perimeter of Square = 4 [ Side ]

From the data

The dimensions of the rectangle are

Length = 18 cm and Breadth = 12  cm  

Using the formulas

Perimeter of rectangle = 2 [ 18 + 12 ] = 60 cm

From the data,

The perimeter of a rectangle = Perimeter of a square

Perimeter of square = 60 cm

Let 'x' be the side of the square

=> Perimeter of square = 4x

=> 4x = 60

=> x = 15 cm

Therefore,

The side of the square is 15 cm  

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