The distance from the fence to the edge of the garden using the center as reference point is 4 1/2 feet.
Given data
garden 14 1/2 feet long and 8 3/4 feet wide
Fence 23 1/2 feet long and 17 3/4 feet wide
We assume:
the fence has no thickness,
the distance considered is in the side of the length
the reference point for the distance is the center
Therefore:
Using the mid points we solve as follows:\
garden length / 2 - fence length / 2
= ( 23 1/2 ) / 2 - ( 14 1/2 ) / 2
= 11.75 - 7.25
= 4.5
= 4 1/2 feet
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