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Where is the height of the triangular prism? tell me
If it is a triangular prism, then any edge between the two bottom surfaces can be used as the height.

If it is an oblique triangular prism, then make any vertical line segment between the planes where the two bottoms are located, which is the height.

(As shown in the figure, the prism ABC-A'B'C' is a straight prism, and the prism DEF-D'E'F' is an oblique prism. )

Because the triangular prism can also be regarded as a trihedron with two vertices cut off, it is also called a truncated trihedron. In addition, because the regular triangular prism is symmetrical and consists of two regular polygons, some people call it a semi-regular pentahedron.

Extended data:

Prism has the following characteristics:

1, all sides are equal, and the sides are parallelogram;

2. The sections parallel to the two bottom surfaces are congruent polygons;

3. The section passing through two non-adjacent sides is a parallelogram;

4. Under the condition of a certain cross-sectional area and length, the longitudinal supporting force of a triangular prism-shaped object is the largest, and the transverse bearing capacity is the smallest (the transverse stress makes the object produce tensile stress, while the longitudinal compressive stress has a reinforcing effect on the object in theory, but the tensile stress is the opposite);

5. Prism volume = bottom area × height.

Straight triangular prism is a very special prism, and its mathematical properties have been better studied because of its particularity. Just as a square is the most special quadrilateral. The picture on the right is very intuitive, and it is the most common straight triangular prism in high school mathematics textbooks.

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