Question

the area of square is 20 cm , find its perimeter ?​

Answer 1

Answer:

area of square=side²

20=side²

side=√20

side=2√5cm

perimeter of square=4×side

=4×2√5

=8√5 cm

Step-by-step explanation:

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Answer 2

Question ::-

If area of square is 20${cm}^{2}$ ,find its perimeter ?

Given ::-

• Area of square = 20cm

To find::-

• Perimeter of square ?

Formula used ::-

• Area of square = side × side

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= ${(side)}^{2}$

• Perimeter of square = 4 × side

Solution ::-

$➠$ Area = ${(side)}^{2}$

$➠$ 20 = ${(side)}^{2}$

$➠$ $\sqrt{20}$ = side

$➠$ 4.47 = side of square.

Hence , side of a square is 4.47 cm.

__________

Perimeter of square = 4 × side

Perimeter = 4.47 × 4

Perimeter = 17.8cm.

_________

therefore ,

perimeter of square is 17.8 cm