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Respuesta :

DarkRebellion
8+8=16
40/16=24
24/2=12
length is 12feet
We know that:
perimeter = (2 x width) + (2 x length)

Plugging in what we know to this equation:
40 = (2 x 8) + (2 x length)
40 = 16 + (2 x length)
24 = 2 x length
12 = length

The length of the room is 12 feet