Question

The perimeter of a square ia 84 centimeter. Find its side?​

Answer 1

Answer:

Side: 21cm

Step-by-step explanation:

Given perimeter =84

Perimeter of square =4a (a:side)

4a=84

a=21 cm

Hope you understand

Answer 2

Answer:

as all sides of a square is equal

so the formula of finding the perimeter of a square is sum of all sides

so we get by assuming the value of one of its side by X

x+ x + x + x = 84 cm

4X = 84 cm

value of x =21 cm

side of square is 21 cm