Question

one square has an area of ​​81cm². Calculate its perimeter.​

Answer 1

Answer:

Perimeter = 36cm

Step-by-step explanation:

The area of a square =  l  2where l is the length of the square's side.

l 2 = 81 ⇒ l = √ 81 =9

hence Perimeter =  4 × 9 = 36 c m

Answer 2

$\huge{ \mathfrak{ \underline{question : }}}$

One square has an area of 81cm². Calculate its perimeter.

$\huge{ \mathfrak{ \underline{ Answer \: \: ✓ }}}$

For a Square,

$\longrightarrow \: area = side {}^{2}$

• $side {}^{2} = 81$

• $side = \sqrt{81}$

• $side = 9$

So, The measure of each side of the square is 9 cm

$\#TeeNForeveR$