Question

A piece of string is 30 cm long. What will be the length of each side if the string is used to form a square?
[2 marks]

Answer 1

The string is bent in the form of a square.

So, the perimeter of the square = length of the string.
[0.5 marks]

Perimeter of square $=30cm$

$\Rightarrow$ 4 $\times$Side $=30cm$
[0.5 marks]

$\Rightarrow$ Side = $\frac{30}{4}$$=7.5cm$
[1 marks]

Thus, the length of each side of square is $7.5cm$.