In this chapter, you learned about some new concepts in ArcGIS such as layers, feature class, features, and geometries. You also learned about graphic elements and symbols and how useful they proved as drawing tools on the map. We then introduced the topological operator and learned how we can use it to do spatial operations on geometries like what we did with the buffer. We used all these tools to draw the signal range for the towers on the map based on each tower's range value.
In the next chapter, you will learn about the proximity tools and you will then use them to estimate the signal strength. To do that, you will be introduced to some more add-ins controls.