Geometric reasoning can be used to measure distances both on earth and in space. surveyors on earth and astronomers both use the geometric technique of triangulation to determine the distances and sizes of remote objects. in order to determine the distance using the triangulation method, a few key geometric components must be known. once the baseline and the sightline angles are determined, then the distance can be calculated with simple geometric reasoning. in the figure below, label the essential components used to triangulate the distance to the tree located on the opposite side of the river (assume the baseline remains constant).
a. angle that decreases with increasing distance to the objectb. distance to objectc. right angled. baselinee. angle that increases with increasing distance to the object