Angles are always fun and easy to learn about if you know the basic idea. Angles are all around us, from the building we live in to the seesaw a child and his friend play on in the park. The angles are the building blocks of how the world works. Angles also give us a lot of information about the world around us. When you know the angle between the two plains, you can figure out how much force your car needs to go up the other plain. Also, you can use the calculations to make decisions even before you start building. A lot of the time, how dams and bridges are built depends on the angles at which they need to slope. If the results of the calculations aren't good enough, the project won't move forward. This saves a lot of time and money.