Final answer:
Triangulation is a method that involves measuring angles from two or more vantage points to calculate the distance to an inaccessible object, using the properties of triangles. It is also the principle behind depth perception in human vision and is applied in geosciences through ternary plots to represent proportions of three-component data.
Step-by-step explanation:
Triangulation is a method used in various fields, including mathematics and geosciences, to measure distances to objects that are difficult or impossible to reach directly. Using two or more vantage points, the angles to the object are measured, and the properties of the resulting triangle are calculated to determine the distance to the object. This concept can also be visually understood through our depth perception, as our eyes view objects from slightly different angles, allowing us to perceive depth. In geosciences, this method can be utilized for creating ternary plots, which graphically represent the proportions of three variables that must sum to 100%. These plots help classify samples, such as soil compositions, based on their grain sizes.