SAT Subject Test Mathematics Level 1
The square above, with sides of length 5, has an area of 5^2 = 25. POLYGONS—PERIMETER AND AREA The test ...
The way to get started with this question is to sketch what’s described in the question. A square of area ...
draw in three diagonals and turn the hexagon into six equilateral triangles of side 1. Each of those si ...
CIRCLES—FOUR FORMULAS After the triangle, the test makers’ favorite plane geometry figure is the circle. Cir ...
Circumference = πd In the circle above, the radius is 3, so the circumference is 2π(3) = 6π. FOUR CIRCLE FO ...
In the figure above, the radius is 5, and the measure of the central angle is 72°. The arc length is of the cir ...
In the figure above, the radius is 6, and the measure of the sector’s central angle is 30°. The sector has ...
Figure 5 Once again, the key here is to add to the figure. And in this case, as so often when there’s a ...
The shaded region is what’s left of the 120° sector after you subtract the triangle with the 120° vert ...
The area of each 30-60-90 triangle is so the area of the triangle with the 120° vertex is twic ...
Similar Figures The area ratio between similar figures is the square of the side ratio. Three Special Triangle T ...
The 5-12-13 Triangle The 45-45-90 Triangle The 30-60-90 Triangle ...
Five Special Quadrilateral Types Polygon Angles For any polygon of n sides: Trapezoid: 1. 2. Parallelogram: Area of Pa ...
Four Circle Formulas Sum of Exterior Angles = 360° Circumference = 2πr = πd Area of a Circle = πr^2 ...
Plane Geometry Follow-Up Test 8 Minutes — 6 Questions Directions Solve the following problems. Select the best ...
Figure 1 (A) (B) (C) (D) (E) 2 . In ∆PRS in Figure 2, is the altitude to side , and is the altitude to side ...
Figure 2 (A) 5.14 (B) 6.22 (C) 7.87 (D) 10.29 (E) 13.44 3 . In Figure 3, and are parallel, and the lengths of segments a ...
Figure 3 (A) (B) (C) (D) 3 x (E) 4 . In Figure 4, if AB = 2, what is the area of ∆ABC? Figure 4 ...
(A) 2.45 (B) 2.73 (C) 3.86 (D) 4.89 (E) 5.46 5 . In Figure 5, the area of parallelogram PQRS is 24 and QR = 6. ...
Figure 6 (A) 110° (B) 120° (C) 130° (D) 140° (E) 150° ...
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