Question

What is the length of the side of a square whose area is 441 sq. cm?

Answer 1

Step-by-step explanation:

given ,

in a square,

area = 441 cm²

let the side of square be a

area of square = side² = a²

so,

according to question,

a² = 441 [area = 441]

a = √441

a = 21

so,

length of each side of square = 21 cm

    EXTRA INFORMATION

Square :--

a = side of square

Area of square = a²

perimeter = 4a

diagonal =$\large{\sqrt{2}a }$

Rectangle :--

l = length

b = breadth

Area = l × b

perimeter = 2(l + b)

diagonal² = l² + b²

Triangle :--

right angled triangle

b = base

h = height

area =1/2 × b × h

Answer 2

Answer:

Hello Dear User__________

Here is Your Answer...!!

____________________

Step by step solution:

$Given \ area \ of \ square \ =441 \ cm^{2}\\\\we \ are \ asked \ side \ of \ square\\\\we \ know \ formula \ for \ area \ of \ square=a^{2}\\ \\Let \ side \ be \ x \ cm\\\\putting \ value \ here\\\\x^{2}=441 \ cm^{2}\\\\ x=\sqrt{441cm^2}\\ \\x=21 \ cm\\\\So \ side \ of \ square \ is \ 21 \ cm$

Hope it is clear to you.