Question

I need help on solving this problem. Please help.

Answer 1

the answer for ur question is
it is given that it is a square

so, the square root of 81 is 9
so for each it will be 9cm
so,9*4 =36

so the perimeter is 36

HOPE THIS HELPS U!

Answer 2

Square root of 81 is 9.
Each side is 9 cm.

9 times 4 (4 being the sides of the square) = 36

Perimeter=36