Question

find the perimeter of a square of area 256 CM square​

Answer 1

$a = 256 \\ so \: side = \sqrt{256 } \\ = 16 \: cm \\ so \: perimeter = 4 \times 16 = 64 \: cm$
this is the answer

Answer 2

Answer :
The PERIMETER of the SQUARE is 64 cm

Explaination :

Given :-

→ Area of the SQUARE = 256 cm

As we all know, square is a quadliateral which has its all sides equal.

→ Area of a SQUARE = Side × Side

To find :-

→ Measure of each side of the SQUARE
→ PERIMETER of the SQUARE

Solution :-

=> Area of SQUARE = Side × Side

Consider side as x

$= > 256 = x \times x$

$= > 256 = {x}^{2}$

$= > {x}^{2} = 256$

$= > x = \sqrt{256}$

$= >x = 16$

$\large{\green{\boxed{\green{\boxed{\red{\textsf{Side = 16 cm }}}}}}}$

PERIMETER of the SQUARE = side × 4

$= > 16 \times 4$

$= > 64$

$\large{\green{\boxed{\green{\boxed{\red{\textsf{PERIMETER = 64 cm }}}}}}}$

$\therefore$The perimeter of the SQUARE is 64 cm