If you need to know it, it's in this book. The best way to prepare for standardized tests is to practice, and this resource offers you plenty of opportunities to do just that.
1,014�GRE Practice Questions, 3rd Edition has been�updated for the�changes�made to the GRE�in August 2011, and includes:
繚�A comprehensive GRE diagnostic exam to identify areas of improvement
繚�Bonus vocabulary content from Word Smart for the GRE
繚�71 additional verbal, math, and essay drills, which�include practice questions covering the new GRE question types
繚� Math drills broken down by geometric shape, such as circles, triangles, and 3-D figures
繚� Verbal drills that include the new Text Completion and Sentence Equivalence question types
繚� Detailed answer explanations for all practice questions