Re: Geometric concepts?
I'll start with a couple of basic concepts and have you working from there.
Let's start at the very beginning.
An angle is where two lines intersect; the smaller the number (measured in degrees) the tighter the angle is.
If you have a line that's totally vertical (up and down) and a line that is straight across (horizontal), and they meet, this will be called a right angle, because it forms a corner. A lot of objects have such corners. The inside angle is 90 degrees, the outside is 270 degrees. Basically, there are 360 degrees around any fixed point.
Now, if either or both of those lines are slanted in some way, that changes the angle. If the horizontal line slopes downward to the right, and meets the vertical line on the left, this means that if the slope is present throughout the line (i.e., starts right away instead of later), that angle is no longer 90 degrees.
Now, there are different rules based on which lines you're looking at and which angles you're trying to measure. This is where my advice from before comes into play.
Do you have someone, or something, available to model the lines and intersections for you?
Or are we talking far more detail than this, where you're getting into things like sine, cosine, tangent, etc.?
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