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# Geometry Topics and Exercise Examples

edited Thu Sep 8, 2016 in Geometry
PowerScore StaffJoined: 04/27/2016Posts: 490

Straight from ETS, maker of the GRE, here are the topics to know with example exercises from POWERPREP, the official practice tests.
NOTE: Area, perimeter, and interior angles are key concepts for Polygons, including triangles and quadrilaterals.  Surface area and volume are key for 3-D figures.

• Lines and Angles
• Acute, Obtuse, and Right
• Supplementary and Vertical
• Parallel and Perpendicular
• Example Problems
• Polygons (other than Triangles and Quadrilaterals)
• Pentagons, Hexagons, and Octagons
• Example Problems
• Triangles
• Equilateral, Isosceles, and Right
• Similar and Congruent
• The Pythagorean Theorem and Pythagorean Triples
• Example Problems
• Squares and Rectangles
• Rhombuses, Parallelograms, and Trapezoids
• Example Problems
• Circles
• Area and Circumference
• Arcs, Sectors, and Central Angles
• Chords and Tangents
• Inscribed and Circumscribed
• Example Problems
• 3-D Figures
• Cubes, Rectangular Solids, and (infrequently) other Prisms
• Right Circular Cylinders
• Example Problems
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