Question

the area of square is 81m square find it's perimeter and length of its diagonal​

Answer 1

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Let the Length of Each Side of a Square be 'x'.

Then,

Area of a Square = Side × Side

=> 81 = x × x

=> 81 = x²

=> x = √81

=> x = 9

Hence,

The length of each side of a square is 9Cm.

Perimeter of a Square = 4 × Side

=> 4 × 9

=> 36 Cm.