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What Is An Angle?

All it takes is a quick glance around a room, any room, to find angles everywhere. Every corner in the room makes an angle. So do the corners of windows, doors, books, tables, shelves, cabinets, and all sorts of other common objects. Anywhere two lines come together to form a point, an angle is created. Angles come in all shapes and sizes and many of them have funny names.

Understanding what angles are, how they work, and how to make them are important. They help us build better streets and cities. Angles help us tell time, using the sun and shadows, and they make it possible to measure how far away the planets and stars are. We can play many games better when we understand how angles help us score points and get from one spot to another in the shortest distance. Angles even work with sunlight to allow us to see colors. When we learn about angles, we are learning about a kind of math called geometry.