Question

The area of a square is 256 cm2. Find :
(1) the length of each side of the square. (ii) the perimeter of the square.​

Answer 1

side of square = s*s= √256=16 cm

perimeter =16+16+16+16=64 cm

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Answer 2

Area of square = Side² = 256 cm².

SIDE = √Area

SIDE = √256

$= \sqrt { 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2}$

= 2×2×2×2

= 16 cm.

Perimeter of square= 4 × side

=4×16

= 64 cm