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Why do we measure perimeter in ft, area in ft^2 (or feet squared), and volume in ft^3 (or feet cubed)? What does each mean within the strand of measurement? Why do you think so many students label their measurements with the incorrect exponent?

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We measure perimeter in ft (feet) because perimeter is a measure of length, and it is the sum of lengths having units of ft (or any one-dimensional unit for length), so the units will just remain one-dimensional.

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