this post was submitted on 21 Sep 2024
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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.
OK, imagine the space outside of the shape is black, or see through or whatever.
Well then the line of separation means nothing and then you've lost two right angles to the contiguous void.
Why? Does a cube floating in the void not have angles?
Without a distinction of where the cube begins or ends it does not because there is no cube and there are no angles.
Fun fact - there are no actual cubes anywhere in the universe. All geometric shapes are an abstraction. There are no cubes and no angles, so that checks out.
Ceci n'est pas une cube.
The cube begins where the void ends and ends where the void begins.
The angle of the triangle that protrudes into the circular part is not a right angle.
My apologies you're correct, you lose two right angles.