Solving geometry and measurement problems on the SAT Math section requires applying the formulas provided for you and using geometry strategies for working with lines, angles, triangles, co-ordinate geometric functions, areas and perimeters, volumes and 3-D geometry, similar figures and circles. The following are some helpful tips for approaching these problems:
SAT Math Formulas and Reference Information:
- Even though the formulas for calculating perimeter, area and volume of various shapes and figures are provided for you in the front page of each SAT Math section, it would be useful to memorize them for ease of application in solving geometry problems. Also, make sure you do not confuse the difference between the area (πr2) and the circumference (2πr) of a circle and use each of them correctly.
Geometry Strategies:
- Figures presented on the SAT are not drawn to scale. Therefore, you will need to derive the proportions of lines, segments and angles from the information that is provided in the question. Try redrawing the figure to scale. Pay attention to congruent sides and angles or types of triangles provided such as isosceles, equilateral and right angle ones.
- If necessary, try to eliminate some of the answer options to narrow down your choices.
Parallel and Perpendicular Lines:
- When a problem contains parallel lines, identify all equal angles, and calculate the angle measures. Look for Complementary and Supplementary angles.
Perimeter and Area:
- When dealing with finding areas and perimeters of irregular shapes, or some combination of figures, divide the figure in to more identifiable shapes such as squares, triangles and rectangles.
Coordinate Geometry: Basics
- Know the sign of the x and y coordinates in each quadrant. In Quadrant 1, for instance, the x value is always positive and the y value is always positive.
Coordinate Geometry: Midpoint and Distance
- Easier distance questions will ask about vertical and horizontal distances. The vertical distance is the positive difference between the y-coordinates, while the horizontal distance can be calculated as the difference between the x-coordinates.
Having a good grasp of the referenced formulas, rules and properties will help you approach geometry questions more effectively and solve your SAT Geometry and Measurement problems more quickly.
If you need help creating a study plan for the SAT math section, contact the office at (604) 922-8456 or e-mail info@options-wp.chhdev.com. Check this blog for weekly SAT tips and updates.
