SAT Subject Test Mathematics Level 1
Figure 4 (A) 13 (B) 14 (C) 15 (D) 16 (E) 17 5 . A square and a regular hexagon have the same perimeter. If the are ...
Figure 5 (A) 0.091 (B) 0.285 (C) 0.614 (D) 0.705 (E) 0.732 ...
Answer Key DIAGNOSTIC TEST 1 . E 2 . E 3 . D 4 . E 5 . B 6 . C ...
Find Your Study Plan The answer key shows where in this chapter to find explanations for the questions y ...
Plane Geometry Test Topics The questions in the Plane Geometry Diagnostic Test are typical of those on the ...
Usually the best thing to do to start on a plane geometry question is to mark up the figure. Put as muc ...
Try to put all the given information into the figure so that you can see everything at a glance and don’t have ...
In the figure above, x + 50 + 100 = 180, so x = 30. Measure of an exterior angle: The measure of an ...
the area of a triangle is always the same. The formula is this: The height is the perpendicular distance be ...
SIMILAR TRIANGLES In Example 2 you’re asked to express the area of one triangle in terms of the area of an ...
SIMILAR FIGURES The area ratio between similar figures is the square of the side ratio. You might wonder how yo ...
Alternative method: If you didn’t see the similar triangles, or if you didn’t know for sure how the area of the l ...
Be sure you know not just the definitions of these triangle types but, more importantly, their special ...
Pythagorean theorem: If you know any two sides of a right triangle, you can find the third side by usin ...
For all right triangles, (leg 1 )^2 + (leg 2 )^2 = (hypotenuse)^2. Pythagorean triplet: A Pythagorean triplet is ...
3-4-5 triangle: If a right triangle’s leg-to-leg ratio is 3:4, or if the leg-to- hypotenuse ratio is 3:5 ...
In the right triangle shown, one leg is 30 and the hypotenuse is 50. This is 10 times 3-4-5. The other leg i ...
If one leg is 3, then the other leg is also 3, and the hypotenuse is equal to a leg times 30-60-90 tri ...
Figure 3 To get the answer to this question, you need to know about equilateral, 45-45- 90, and 30-60-90 ...
Using the side ratios for 30-60-90s and 45-45-90s, you know that and that Therefore, The answer is (D). HI ...
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