Students need the best teacher, so you need examples, because examples are the best
teacher. All the examples in this book are fully worked, and help you do math better.
And this book is for your skill of geometry, and you will grow the skill through
examples. Some examples may look too easy or too hard. It all depends on your skill of
algebra. Whatever your skill may be though, you can grow yours if you follow the steps
in each example. Each is detailed so that you can learn those tools fast, and increase
your caliber quickly as well as properly.

And this book covers geometry, and is particularly about angles, so it explains what an
angle is about, how it gets made and what we can do with it or how to use it. What then,
is it for?

An angle is an idea in math, so it's a math idea, and is a tool in math. So it's a math tool.
And we use it, solving problems, of course. So students need to get the idea.
Thus, this book helps you get the idea of an angle, that is, the concept of a math
object called an angle, and you will get to see how to work with it properly, because the
book explains how it gets made, and how it works, along with its nature so that you can
develop your own idea, to solve problems, of course.
And some sample pages are at:
http: //www.runmath.com/ExcerptFromPosAngSeongKim.pdf