Which method uses two fixed points to form a triangle?

Which method uses two fixed points to form a triangle?

• A. Coordinate method
• B. Triangulation method
• C. Cross projection method
• D. Oblique projection method

Answer: (B)

Triangulation uses a baseline formed by two fixed points to locate a point by creating triangles. With the two known points, you establish a baseline; measuring the angles from each end to the target point lets you form a triangle. Using that triangle’s geometry and trigonometry, you determine the unknown location. The coordinate method relies on coordinates and algebra rather than building triangles from a fixed baseline. Cross projection and oblique projection are projection techniques rather than methods that form triangles from two fixed points to determine position.

Triangulation uses a baseline formed by two fixed points to locate a point by creating triangles. With the two known points, you establish a baseline; measuring the angles from each end to the target point lets you form a triangle. Using that triangle’s geometry and trigonometry, you determine the unknown location. The coordinate method relies on coordinates and algebra rather than building triangles from a fixed baseline. Cross projection and oblique projection are projection techniques rather than methods that form triangles from two fixed points to determine position.