Question

The area of a square photo frame is 256 cm'. find the perimeter of the photo frame.

Answer 1

Perimeter of the photo frame is 64 cm.

According to the question

Area of a square photo frame is 256 cm2.

The area of a square is equal to the square of the length of its side and the perimeter of the square is 4 times the length of its side.

Area of the square = side × side = a × a

$a^{2} = 256$

Side(a) = $\sqrt{256}$ = 16

Side(a) = 16

Perimeter of the photo frame:

Formula for perimeter of a square:

Perimeter p = 4a

p = 4 × 16

p = 64

Perimeter of the photo frame is 64 cm.

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