154 xx took meh some tome to work it out x
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If 23 of the area of the square is 54 then the area of the whole square is 54/23 = 2.3478 square metres. The sides are, therefore, 1.5323 metres and so the perimeter is 6.1290 metres.
(-54) - 23 = -77
Perimeter = 4*23 = 92 cm providing the sides are 23 cm
54
The perimeter is 54 meters.