Otherwise it is an oblique triangular prism. If the bases are perpendicular to the lateral faces, meaning they meet at right angles, it is a right triangular prism. Triangular prisms can be classified based on how their bases and lateral faces intersect or meet. Often, a regular triangular prism is implied to be a right triangular prism. Therefore, if the bases of the triangular prism are equilateral triangles, it is a regular triangular prism. A regular prism is defined by a prism whose bases are regular polygons. Triangular prisms can also be classified based on the type of triangle that forms its base. There are a few different types of triangular prisms such as regular and irregular triangular prisms, right triangular prisms, oblique triangular prisms, and more. Where SA is surface area, a, b and c are the lengths of the sides of the bases, b is the bottom side of the base, and h is the height of the base. The surface area of a triangular prism is the sum of the areas of its 3 lateral faces and 2 bases and is given by the formula, Where B is the area of a triangular base and h is the height (the distance between the two parallel bases) of the triangular prism. The volume, V, of a triangular prism is the area of one of its bases times its height: Triangular prism formulas Volume of a triangular prism
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