SUMMING IT UP • Lines and line segments are the fundamental elements for most GRE geometry problems, so it’s essential to be familiar with the basic rules of angles formed by intersecting lines. • Be certain you know the properties of all basic types of triangles. You’ll not only encounter several problems involving triangles on the GRE, but you’ll also need to have the skills necessary for solving problems with four-sided figures, three- dimensional figures, and circles. • GRE circle problems typically involve other types of geometric figures as well, including triangles, squares, rectangles, and tangent lines. Learn the basics of circle problems and you’ll be a step ahead in solving the most advanced geometry problems. • GRE coordinate geometry questions involve the xy-plane defined by the hori- zontal x-axis and the vertical y-axis. You will need to know how to determine the slope of a line, so remember to calculate it as “rise over run” and not “run over rise.” Chapter 11: Math Review: Geometry 303 www.petersons.com P ART V VERBAL REASONING CHAPTER 12 Analogies CHAPTER 13 Sentence and Text Completions CHAPTER 14 Reading Comprehension CHAPTER 15 Antonyms and GRE Vocabulary . other words, there’s another kind of rela- tionship you must recognize to narrow down the choices further) Step 5: Choose the Best Answer If none of the. step-by-step approach to handling any GRE Analogy, and you’ll apply that approach to some GRE- style Analogies. Then you’ll learn strategies for solving GRE