in 3d shapes, a prism must have two congruent bases, and all of the other sides must be made of congruent rectangles. (squares are rectangles.
A2. A prism is a solid with two parallel ends, and of constant cross-section between them. And normally with 90deg between the base and a side.
It may be of any number of sides, and as the number of sides gets large, the shape approaches that of a cylinder.
This is one item of the set of prismatoids, others of which can ignore the 90deg constraint and so on.
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A triangular prism has two triangular faces, a rectangular prism does not have any.
Any polygons
A solid shape with regular area and height makes a prism. A solid shape with regular area and height makes a prism. A solid shape with regular area and height makes a prism.
the shape that has 8 faces , 18 edges , and 12 vertices is simply a hexagonal prism not a pyramid my butt :P
because triangle is only 2d shape but a prism is 3d shape