Three dimensional shapes are shapes with height, width, and depth. In contrast, two dimensional shapes only have height and width, or length and width.
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4D shapes are shapes in four dimensional space. Since we live in 3D space it is very difficult for most people to visualise 4D shapes.
There are a few simple shapes with equal sides. The basic shapes are a square, octagon, and an equilateral triangle,
there is a lot like irregular shapes
3D shapes have edges, sides, and intersecting points
Four shapes(triangle,dimonds,or cone)