SAT Subject Test Mathematics Level 2
Usually the best thing to do to start on a plane geometry question is to mark up the figure. Put as m ...
Most Math 2 plane geometry calculations are about closed figures: polygons and circles. And the test ...
In the figure above, a + b + c = 360. (Note: In fact, the measures of the exterior angles of any ...
Triangle Inequality Theorem: The length of any one side of a triangle must be greater than the positive ...
You might wonder here how you’re supposed to find the area of ∆QSP when you’re given no lengths you ...
You can assume that a figure is drawn to scale unless the problem says otherwise. So, when you’re stuck on ...
THREE SPECIAL TRIANGLE TYPES Pythagorean theorem: If you know any two sides of a right triangle, you can fin ...
For example, if one leg is 2 and the other leg is 3, then Pythagorean triplet: A Pythagorean triplet is a set ...
3-4-5 triangles: If a right triangle’s leg-to-leg ratio is 3:4, or if the leg-to-hypotenuse ratio is 3:5 ...
5-12-13 triangles: If a right triangle’s leg-to-leg ratio is 5:12, or if the leg-to-hypotenuse ratio is 5:13 ...
Example 3 Figure 3 To get the answer to this question, you need to know about equilateral, 45-45-90, and ...
The answer is (D). HIDDEN SPECIAL TRIANGLES It happens a lot that the key to solving a geometry problem is to a ...
As you read the stem, you might wonder what an isosceles trapezoid is. If you’ve never heard the term ...
One leg is 7 + 9 = 16, and the other leg is 12. The resulting triangle of which is the hypotenuse is a ...
In parallelogram KLMN above, 4 is the height when LM or KN is used as the base. Base × height = ...
of a certain perimeter is that rhombus that has each pair of adjacent sides perpendicular, in which ca ...
POLYGONS—PERIMETER AND AREA The Math 2 test makers like to write problems that combine the concepts of ...
Each side of the regular hexagon has a length of . SKETCH A FIGURE IF NONE IS PROVIDED The best way to ge ...
POLYGON ANGLES For any polygon of n sides: Use the fact that the perimeters of the hexagon and triangle are the ...
CIRCLES—FOUR FORMULAS After the triangle, the test makers’ favorite plane geometry figure is the circle. Cir ...
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