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Cube: 6s². Rectangular prism: 2(lw+lh+wh). Sphere: 4πr². Cylinder: 2πr² + 2πrh (including caps). Cone: πr² + πrl where l = slant height = √(r²+h²). Pyramid: base area + ½ × perimeter × slant height. Used for material estimation (painting, coating, insulation), heat transfer calculations, and packaging design. Lateral surface area excludes the base(s).
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