• angrystego
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    6 months 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.)

    • finitebanjo
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      6 months 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.

      • Threeme2189
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        6 months ago

        OK, imagine the space outside of the shape is black, or see through or whatever.

        • finitebanjo
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          6 months ago

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

          • Threeme2189
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            6 months ago

            Why? Does a cube floating in the void not have angles?

          • angrystego
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            6 months ago

            The angle of the triangle that protrudes into the circular part is not a right angle.

            • finitebanjo
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              6 months ago

              My apologies you’re correct, you lose two right angles.