GMAT Quantitative
A comprehensive introduction to the quantitative reasoning skills tested on the GMAT, covering arithmetic, algebra, geometry, and data analysis.
Basic Concepts
Geometry Basics
Exploring Shapes and Space
Geometry deals with the properties and relationships of points, lines, surfaces, and solids. On the GMAT, you'll see questions about area, perimeter, volume, and angles.
Main Topics
- Triangles, circles, quadrilaterals, polygons
- Perimeter and area of 2D shapes
- Volume and surface area of 3D figures
- Angles and parallel lines
Geometry in the Real World
Geometry helps you understand how much paint you’ll need for a wall or how to pack a box efficiently.
Handy Hints
- Memorize key formulas for area and volume.
- Draw diagrams to visualize complex problems.
Watch Out
- Don’t assume diagrams are to scale unless stated.
- Remember that all triangle angles sum to 180°.
Drawing Conclusions
Geometry is not just about memorizing formulas—it's about visual thinking and logical deduction.
Examples
The area of a triangle with base 10 and height 5 is (1/2) × 10 × 5 = 25.
A rectangle with sides of 4 and 7 has a perimeter of 2 × (4 + 7) = 22.
In a Nutshell
Geometry is the study of shapes, sizes, and the properties of space.