Ho to convert km in square km? - Answers

This question leaves a lot to interpretation. A kilometer is a linear measurement of distance. A line (that is, a true line) has only one dimension, namely it has no width, only length. Therefore a square kilometer cannot be derived simply from a linear measurement. If what you are asking is how to square a given quantity, you simply have to multiply it by itself. For instance for a quantity of 10 to be squared, you multiply it by itself: 10 x 10 = 100. Square quantities are often used to measure surface area, such as in the floor plans of homes. But, in this instance it will not suffice to simply square a linear measurement to find the squared dimensions of a room. At least two measurements are needed. That is to say that if a room has four walls, and is 10 feet long and 20 feet wide you multiply 10 x 20 to find the floor area 200 feet. This what is referred to as feet squared or square footage.