Based on the information given, the computation of the perimeter of the rectangle will be 44.8cm.
It should be noted that the perimeter of a rectangle is calculated by using the formula:
Perimeter = 2(Length + Width)
Perimeter = 2(17.8 + 4.6)
Perimeter = 2(22.4)
Perimeter = 44.8
Therefore, the perimeter of the rectangle will be 44.8cm.
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