Tài liệu Master the Gre 2010 - Part 33 docx

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

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