Question

the area of square field is 81 square meter then its perimeter is?​

Answer 1

Answer:

Step-by-step explanation:

a2=81

a =√81

=9

Perimeter = 4(a)

=4(9)

=36 m

Answer 2

Perimeter of square field is 36 meter.

Given:

• Area of square field is 81 m².

To find:

• Find the perimeter of square field.

Solution:

Formula to be used:

1. Area of square: Side²
2. Perimeter of square: 4×side

Step 1:

Find side of square field.

As it is given that; Area is 81 m².

Let side of square is 'a'; thus

${a}^{2} = 81$

or

$\bf a = \pm \: 9$

Because sides can never be a negative quantity.

Thus,

Side of square field is 9 meter.

Step 2:

Find the perimeter of square field.

Perimeter of square field= 4×9

= 36 meter.

Thus,

Perimeter of square field is 36 meter.

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