Question

The area of a square is 81 sq. ft, then what is the
side of such a square?​

Answer 1

Area of a square = side²

Therefore, Replacing The Given Values,

81 = Side ²

Side = √81 = 9 cm

Therefore , Side of such square is 9 cm

Answer 2

Answer:

Area of sq.=side^2

let side be a ft

therefore ,

81=a^2

a=9 ft

hope this will help you