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So I would like some recommendation for high school geometry books that are affordable and preferably e-books.

Why do I need some books on high school geometry? I would like to improve my geometric reasoning. When I took high school geometry a decade and half ago, I was freshman in high school and not paying attention to the subject. I understand that I have a deficient in spatial reasoning as well as having a hard time picturing congruences and similarities between polygons and triangles.

I understand some basics, but I would like to know the intermediate knowledge. When I took high school trigonometry, I enjoyed the subject and understood the topics up to the applications to geometry (where I had trouble with it). So far, the geometry books that I have are Master Math Geometry and 300 level geometry book- Euclidean and non-Euclidean geometry by Greenberg.

Thanks,

cbarker1