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The lateral surface of an object is the area of all the sides of object excluding area of its base and top. For a cube, the lateral surface area would be the area of four sides. Consider the edge of the cube as . The area of one square face ''Aface'' = ''a'' ⋅• ''a'' = ''a''2. Thus the lateral surface of a cube will be the area of four faces: ''a'' ⋅ ''a'' ⋅ 4 = 4''a''2. The lateral surface can also be calculated by multiplying the perimeter of the base to the height of the prism. For a cylinder, lateral area is the area of the side surface of the cylinder: ''A'' = 2π''rh''. For a pyramid, the lateral surface area is the sum of the areas of all of the triangular faces but excluding the area of the base. ==References== 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Lateral surface」の詳細全文を読む スポンサード リンク
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