Question

Please help in solving this problem ​

Answer 1

Answer:

area of square = side x side

441 cm^2 = side x side

so, √441 cm = side

√441 =21 cm

one side = 21 cm

Perimeter of square = 4 x side

= 4 x 21cm

84 cm = perimeter

hope it helps

Mark brainliest

Answer 2

Answer:

$a = 21 \: a = a2 \: a = \sqrt{a \: = \sqrt{441 = 21} }$