Question

the length of the side of a square whose area is 441 M power square is

Answer 1

$\sqrt{441} = 21$

Answer 2

The area of square = a(length of one side) 2
441m2. =a2
√441. =a
a. =√441
a. =√21*21
a. =21



thus, the length of each side is 21 m