Q: Who invented a 1d shape?

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no

A square is a shape and a shape cannot be invented.

The United Kingdom Post Office issued the 1d black on 1st May 1840. It was the first adhesive postage stamp and was invented by Rowland Hill.

The cube shape occurs naturally in nature (eg a crystal of Galena is cubic) thus the shape was not invented by anybody.

Yes a polygon is considered a 3D shape or also 1D or 2D would be a polygon.Taylor Fairington 16

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no

Me

1D a single line (?) 2D a flat shape 3D a cube

It doesn't have any volume (3D) and it's not a line (1D). Thus, it is a 2D shape.

take, for an example, a duck. This is a 3d shape because it has three dimensions. Compare this to a square, which is 2d. the difference is that the duck has a beak, and the square does not.

A square is a shape and a shape cannot be invented.

1L, 1D, 1L, 2D, 2U, 1R, 2U, 1L, 1R, 2D, 1L, 1U, 2L, 1D, 1R, 1D, 1R, 1U, 2D, 1R, 1D, 3R, 1U, 1R, 6U, 2L, 1U, 3L, 1D, 1L, 2D, 1L, 2D, 3R, 1U, 2R, 1U, 1R, 1U, 1D, 1L, 1D, 2L, 1D, 3L, 2U, 1R, 2U, 2R, 1U, 2R, 1D, 1R, 2D, 1L, 1D, 2L, 1D, 1L, 2D, 1R, 1D, 3R, 1U, 1R, 4U, 2L, 1D, 1R, 1U, 1R, 3D, 2U, 2L, 1D, 1R, 1U, 1R, 1D, 1L, 1D, 2U, 3L, 1D, 3L, 2U, 1R, 1D, 5R, 1D, 1R, 1U, 7L, 1D, 1R, 1D, 1R, 1U, 1L, 1U, 5R, 3L, 1U, 1L, 1D, 4R, 3U, 1L, 1U, 3L, 1D, 1L, 2D, 1L, 1D, 5R, 1U, 1R, 1D, 1L, 1D, 1R, 1L, 1U, 4L, 3U, 1R, 2D, 1L, 1D, 4R, 1D, 1R, 3U

The United Kingdom Post Office issued the 1d black on 1st May 1840. It was the first adhesive postage stamp and was invented by Rowland Hill.

The cube shape occurs naturally in nature (eg a crystal of Galena is cubic) thus the shape was not invented by anybody.

Yes a polygon is considered a 3D shape or also 1D or 2D would be a polygon.Taylor Fairington 16

it is 1D signal.

liam is the oldest one in 1d