Question

area of
of square is 81 cm then its​ side is

Answer 1

Answer:

9 cm

Step-by-step explanation:

area = s²

81 =  s²

√81 =s

9cm= s

Answer 2

Answer:

SIDESIDE= AREA OF SQUARE

LET TAKE THE SIDE BE $x$ cm

$therefore:- \\x*x =84cm^{2}\\x^{2} =84\\x=\sqrt{84} \\x=9.1cm$

therefore the side of the square is 9.1cm