Question

What is the length of the side of a square whose area is 441cm2

Answer 1

Answer:

let the side be x

x * x = 441

x = √441

x= ± 21

as side cannot be negative

x = 21 cm.

Answer 2

Answer:

21cm

Step-by-step explanation:

area - side * side

441 - (side)2

side-√441

side - 21 cm