What is the process of indirect measurement?

Indirect measurement involves determining the size or distance of an object by using known measurements and applying mathematical principles, rather than measuring directly. This method often employs tools like triangulation, where the measurements of angles and distances from different points are used to calculate the height or length of an object. It can also involve using similar triangles or ratiOS in geometric contexts. Indirect measurement is particularly useful in situations where direct measurement is impractical or impossible.