• KptnAutismus@lemmy.world
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    11 months ago

    this is actually the one thing i am glad to have learned in math class. saves me a lot of guesswork sometimes.

    • incogtino
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      11 months ago

      SOHCAHTOA and a calculator have been real useful for that too

    • fine_sandy_bottom@discuss.tchncs.de
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      11 months ago

      I can’t think of when I’ve actually used it.

      I’ve seen comments about how 3, 4, 5 allows you to make a square corner with a tape measure, but I’ve never had an opportunity to use that trick.

      I find myself trying to guess the area of things a lot more.

      • Peppycito@sh.itjust.works
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        11 months ago

        I guess your not a carpenter and you don’t build things? It’s super useful. I don’t use it all that often but it’s an excellent tool to have. Even just laying out a square garden, say. It also works with any multiple to make bigger perpendiculars, 6, 8, 10 or 15, 20, 25