• @[email protected]
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    139 hours ago

    A square? A square?! Wake up sheeple! That things not even a rombus! Don’t you see the lies? Look at the lines! Look! Not all rhombuses are squares, but all squares are rhombuses! All squares are rhombuses and look at this thing they try to call a square. Where are the parallel lines? There’s got to be parallel lines, don’t you see, or then it’s not a rombus and all squares are rhombuses. Don’t forget that, don’t let them take that fact from you and perpetuate their geometric lies. Does no one even remember what a rombus is? This is, this is basic geometry here that you should have learned in middle school or elementary school, but then you just forget it, and let people trick you with these misleading definitions and fancy diagrams but you have to remember that a Square. Is. A. Rombus.

  • @[email protected]
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    2714 hours ago

    This is what AI would give you after countless tries strating with a triangle and having gone up the Pentagon and down to two pairs of unconnected parallel lines…but what if all equally sized lines were connected? Bam! This

  • @[email protected]
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    5821 hours ago

    A square has all right angles inside the structure. This thing has two inside and two outside.

    • @[email protected]
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      820 hours ago

      If you add that to the definition, you could still have a “square” with a segment of a circle connecting the edges in the middle

    • Alinor
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      17 hours ago

      But arent the ones from the circle 90 degrees on the inside of the circle as well? The squares could’ve just as well been placed on the other side of the (circle) lines.

      • @[email protected]
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        516 hours ago

        No, the two angles are not equal. Outside/inside angles add up to two π radians. A square has four interior angles of 1/2 π radians, and four exterior angles of 3/2 π radians.

      • @[email protected]
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        217 hours ago

        This is true, however now it has 4 inside and two outside the structure, so it now has something a square doesn’t has.

  • @[email protected]
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    23 hours ago

    Kinda forgot the sides being parallel part. Like missing a step in assembling IKEA furniture, its not gonna turn out right.

    • @[email protected]
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      6924 hours ago

      You don’t normally need to specify that the sides are parallel if you specify four right angles.

      • @[email protected]
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        1821 hours ago

        This one is enclosed and contiguous though, the lines of the triangle end where the circular line starts. (The rest is just a drafting residue.)

        • @[email protected]
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          -921 hours ago

          No, it is 2 contiguous regions. The line of separation is the bounding line of a “shape.”

          Otherwise, the entire whitespace outside of the region is also part of the shape, as is anything it touches.

            • @[email protected]
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              -421 hours ago

              Well then the line of separation means nothing and then you’ve lost a right angle to the contiguous void.

                • @[email protected]
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                  -420 hours ago

                  Without a distinction of where the cube begins or ends it does not because there is no cube and there are no angles.

  • @[email protected]
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    1719 hours ago

    Now make a square out of squiggly yarn

    String theorists claim this is the true shape of spacetime!

    • @[email protected]
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      1119 hours ago

      This is merely a projection of a square on the surface of a cone projected onto a plane.

          • @[email protected]
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            14 hours ago

            Only true in Cartesian coordinates.

            A straight line in polar coordinates with the same tangent would be a circle.

            EDIT: it is still a “straight” line. But then the result of a square on a surface is not the same shape any more.

            • @[email protected]
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              312 hours ago

              A straight line in polar coordinates with the same tangent would be a circle.

              I’m not sure that’s true. In non-euclidean geometry it might be, but aren’t polar coordinates just an alternative way of expressing cartesian?

              Looking at a libre textbook, it seems to be showing that a tangent line in polar coordinates is still a straight line, not a circle.

              • @[email protected]
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                14 hours ago

                I’m saying that the tangent of a straight line in Cartesian coordinates, projected into polar, does not have constant tangent. A line with a constant tangent in polar, would look like a circle in Cartesian.

                • @[email protected]
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                  23 hours ago

                  Polar Functions and dydx

                  We are interested in the lines tangent a given graph, regardless of whether that graph is produced by rectangular, parametric, or polar equations. In each of these contexts, the slope of the tangent line is dydx. Given r=f(θ), we are generally not concerned with r′=f′(θ); that describes how fast r changes with respect to θ. Instead, we will use x=f(θ)cosθ, y=f(θ)sinθ to compute dydx.

                  From the link above. I really don’t understand why you seem to think a tangent line in polar coordinates would be a circle.

    • Kairos
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      101 day ago

      This is also not a polygon. It has infinite and 2 sides at the same time.

    • tate
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      61 day ago

      This actually has six right angles if you include exterior ones.