1.22. Triangulation Surveys

Try these first

1. 1.

   What is triangulation?

   Hint

   Think about how you could use triangles to find locations.

2. 2.

   Define a control point.

   Hint

   Consider its role in relation to triangulation.

3. 3.

   What is the main use of triangulation in surveying?

   • To measure distance
   • To calculate angles
   • To determine positions

   Hint

   Think about what surveying aims to achieve.

4. 4.

   True or False: Trilateration is generally more accurate than triangulation.

   • True
   • False

   Hint

   Consider how each method works to find positions.

5. 5.

   You need to set up triangulation stations in a hilly area. What factors would you ensure are met for optimal measurements?

   Hint

   Consider the role of the landscape in your decision.

6. 6.

   If you have a triangle with angles measuring 45° and 75°, what is the measure of the third angle?

   Hint

   Use the angle property of triangles.