Answer:Square inches are a unit of area; inches are a measure of length. ... What's the difference between the footprint area of your house and the length of its frontage on the street? Square inches are a unit of area; inches are a measure of length. They may look similar, but they're fundamentally different concepts.
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the difference is the time youre supposed to use them if that makes sense. When measuring the length of an object you just use inches, when measuring the area of an object you use square inches
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