The base of a right prism is a triangle whose sides arc of lengths 13 cm., 20 cm. (iii) volume of a right prism = ( area of base ) × (height).ġ. = area of its side faces + 2 × area of its base (ii) area of total surfaces of a right prism (i) area of the side faces (i.e., lateral surfaces) of a right prism If h be the height (i.e., the perpendicular distance between the parallel end faces) and the lengths of the sides of the base polygon be a, b, c, d. Right Prism: If the side-edges of a prism are perpendicular to its ends (or to base), it is called a right prism otherwise, a prism is said to be oblique.įor a right prism the side faces are all rectangles and each side-edge is equal its height. The perpendicular distance between two ends of a prism is called its height. ABCDE is the base of the prism given in the figure. The end on which a prism stands, is called its base. These side-edges are all parallel and equal in length. The straight line along which two adjacent side faces of a prism intersect is called a side-edge of the prism. In particular, a prism is said to be triangular if its two ends are triangles it is called quadrangular if its ends are quadrilaterals and so on. A prism is said to be polygonal if its two ends are polygons. The number of such side faces is equal to the number of the sides of the polygon at the ends of the prism. are its side faces and these faces are parallelograms. A prism has been displayed in the given figure ABCDE and PQRST are its two ends these two are congruent parallel planes.
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