Sivupintaalaan
Sivupintaalaan is a Finnish term that translates to "side surface area" or "lateral surface area" in English. It refers to the area of the sides of a three-dimensional geometric shape, excluding the areas of its bases. For example, in a cylinder, the sivupintaalaan is the curved surface that connects the two circular bases. In a prism, it is the sum of the areas of all the rectangular faces that make up the sides.
The calculation of sivupintaalaan depends on the specific geometric shape. For a prism, it is typically found