Question

if the area of square is 81cm².find it's side​

Answer 1

Given:

The area of a square is 81 cm² .

To Find:

The measurement of a side of the square.

Formula:

Area of a square = Side² = Side × Side

Explanation:

According to the question,

Side² = 81cm²

or, Side = √81 cm²

or, Side = 9 cm

Answer:

The side of the square measures 9 cm.

Answer 2

Step-by-step explanation:

Given:-

Area of square = 81cm²

side = ?

let side be x

therefore area of square = side × side

81 cm² = x × x

81 = x²

x = √81

x = 9 CM

therefore side = 9 cm