Prisms

What is it?

A prism is a polyhedron (a 3D form having five or more faces) with two parallel and congruent polygonal bases, so that all cross-sections taken parallel to the bases are also congruent with the bases. All lateral faces (or sides) are parallelograms. Lateral faces meet in line segments called lateral edges.

A right prism is one whose lateral faces and lateral edges are perpendicular to its bases. The lateral faces of a right prism are all rectangles, and the height of a right prism is equal to the length of its lateral edge. A regular prism has regular polygons as bases and has all sides equal in length and all angles equal in measure. A right regular prism is one with regular polygon bases and perpendicular rectangular lateral sides.

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The volume of a prism is: B * h

The Lateral Surface is: P*h
where P is the perimeter of the base

The Surface of prism is 2*B+Slat




Right Triangular prism

A right triangular prism is made of two triangular bases and three rectangular faces with lateral edges perpendicular to tthe bases.
rt_tri_prism.png
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A regular right triangular prism is made of two equilateral Triangular bases and three identical rectangular sides:

Image from www.nabla.hr/Z_BASolidGeometry.htm