Question

Find the length of the side of a square whose area is 441m²​

Answer 1

Answer:

area =441

let the side be x

${x}^{2} = 441 \\ x = \sqrt{441 }$

x=21

Answer 2

Answer:

Length =21 cm

Step-by-step explanation:

Area of square = SxS

$441 = {s}^{2} \\ \sqrt{441} = s \\ 21 = s$