Here are examples of the kinds of figures I want to generate in Mathematica:
from Joyce's online Elements
from Mathworld
In particular, I want to label various points, line segments, and angles. I also want to show X and Y axes, so I'm assuming I should be using Graphics[] rather than Graph[] (but I am a novice at this).
I know how to draw the circles and triangles; but I find no native way to add the labels. Have I missed it? Or do I need to calculate the x and y coordinates for each label myself, and then place some text at those coordinates? Have I overlooked native Mathematica functionality designed for this task?