Question

A piece of string 120 cm long.if the string is bent to form a square,what will be the length if each side.

Answer 1

Perimeter of square,

$L = 4a$ where a is side of square.

Length of string is 120 cm. Hence,

$4a = 120$

$a = \frac{120}{4} = 30 cms.$

Length of a side of square is 30 cms.