Question

a piece of string is 30 cm long. what will be the length of each side is the string is used to form
a) square​

Answer 1

Answer:

Each side of the square = 7.5cm

Step-by-step explanation:

Given :

Length of a piece of string = 30 cm

The string is a square

To find :

The each side of the square

Concept :

The length of square = Perimeter of the square

Let the side of the square be x

So , to find the side of the square use this formula -:

$\boxed{\tt{P=4s}}$

Where,

P = Perimeter of the square

s = Side of the square

Solution :

$:\implies\tt{30cm=4\times x}$

$:\implies\tt{\cancel{\dfrac{30cm}{4}}=x}$

$:\implies\tt{7.5cm=x}$

So , the each side of the square is 7.5 cm .