this post was submitted on 19 Mar 2025
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xkcd

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The biggest I've seen in a published source in the wild is an 80-fold error in a reported distance, which I think came from a series of at least three unit conversions and area/length misinterpretations.

https://explainxkcd.com/3065/

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[–] Donjuanme@lemmy.world 9 points 1 day ago (1 children)

Always bothers me that I can't trust 90% of people (myself included) to properly state area, square feet or feet squared, very different scales.

[–] SpaceNoodle@lemmy.world 2 points 1 day ago (1 children)

Square feet are feet squared.

[–] Donjuanme@lemmy.world -1 points 9 hours ago* (last edited 9 hours ago) (1 children)

3 square feet are 3 1x1 feet, 1/3rd of a square yard. 3 feet squared is a square yard, 3x larger than 3 sqft.

Unless I'm missing your sarcasm.

Also the purpose of this xkcd

Edit to add, a 600 square foot studio apartment (about 3% of an acre) is much smaller than the 600 foot squared lot that a mcmansion will sit on. (About 9 acres)

[–] SpaceNoodle@lemmy.world 0 points 8 hours ago* (last edited 8 hours ago) (1 children)

I believe "feet squared" and "feet, squared" is the discrepancy here.

The unit ft^2 is pronounced "feet squared" and is equivalent to sq. ft.

[–] Donjuanme@lemmy.world 0 points 4 hours ago* (last edited 4 hours ago) (1 children)

No need to add the comma if you say it properly, feet squared are not squared feet, quantifier (3) adjective (square) noun (feet) vs quantifier (3) noun (square) affective (feet), it's the order of operations in the English language, one is quantifying the distance of the edge, while the other is quantifying how many individual edges (squares) of set distance (feet) you have.

I am not writing it with any discrepancy, though I do get tripped up when talking about it, but generally nobody calls anyone on it, except that's when expensive projects go boom sometimes.

Read out loud 3sqft and 3'^2,

First one: 3 square feet

Second one: 3 feet (foot? If you're pedantic) squared (square if you're a pedant)

[–] SpaceNoodle@lemmy.world 1 points 3 hours ago

Read out loud "three squared" and 3^2