Question

area of a square is 441 sq.cm. Then find it’s area

Answer 1

Given area of square = 441 cm²

side²= 441

side = 21 cm

so,

perimeter = 4 × side

= 4 × 21

perimeter = 84 cm

Answer 2

Answer:

QUESTION SHOUD BE :

if the area of a square is 441 square CM then find its side or perimeter

Area of square = 441 sq.com

$we \: know \: that \: ara \: of \: square \: = (side) {}^{2} \\ \\ (side) {}^{2} = 441 \\ \\ side = \sqrt{441} \\ \\ side = \sqrt{21 \times 21} \\ \\ side \: = 21 \: cm$

PERIMETER

$perimeter \: of \: square \: =4 \times (side) \\ \\ = 4 \times 21 \\ \\ = 84 \: cm$

the perimeter of a square = 84 cm

side of a square is equal = 21 cm