1. First, you need to measure the height of the goniometer to the horizontal ground.

2. Start measuring the elevation angle from the observation point to the vertex of the light pole, and start measuring the horizontal distance from the observation point to the light pole.

3. Sort out the inductive data, draw a mathematical model diagram, construct right angles and triangles, and start sorting out ideas.

4. Through strict mathematical processing, the height AB of the lamp pole can be finally obtained.