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The center of a coin is almost exactly in its center.
It depends on how off-center the coin is. The more dramatically off-center the coin is, the more it is worth. A slightly off center coin might be worth a dollar, while a dramatically off center coin might be worth $5+
√(w+20)=4 Square both sides: w+20=16 w= -4
The value depends on how "off center" it is. A coin that is only slightly off center will be worth around $3-$4 while a coin that is around 80% off center will be worth around $5-$7.
' L ' = length of the room ' W ' = width of the room ' H ' = height of the ceiling Floor = ( L W ) square feet Ceiling = ( L W ) square feet 2 walls = ( L H ) square feet, each other 2 walls = ( W H ) square feet, each