Question

find the perimeter of a square of area 256cm2
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Answer 1

Answer:

64 cm

Step-by-step explanation:

Area = 256 cm

We fill Find Side by Square root

√256

Side 16 cm

Perimeter = side * 4

16 cm * 4

64 cm

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Answer 2

Answer:

64cm.

Step-by-step explanation:

$Area of square= a {}^{2} \\ 256cm {}^{2} = {a}^{2} \\ {a }^{2} = 256 {cm}^{2} \\ a = \sqrt{256cm {}^{2} } \\ a = 16cm$

Side=16cm.

$perimeter \: of \: square = 4a \\ 4a = 4 \times 16 \\ = 64cm$

Answer.

64 cm.

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