New SAT Math Workbook

# As mentioned earlier be particularly careful with

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Unformatted text preview: B? (A) 30 (B) 60 (C) 100 (D) 120 (E) 150 2. 3. In triangle ABC, AB = BC. If angle B contains x degrees, find the number of degrees in angle A. (A) x (B) 180 – x (C) (D) (E) 180 − x 2 x 90 − 2 90 – x 4. 197 198 Chapter 13 7. In the diagram below, AB is perpendicular to BC. If angle XBY is a straight angle and angle XBC contains 37°, find the number of degrees in angle ABY. 9. In a circle whose center is O, arc AB contains 100°. Find the number of degrees in angle ABO. (A) 50 (B) 100 (C) 40 (D) 65 (E) 60 10. Find the length of the line segment joining the points whose coordinates are (–3, 1) and (5, –5). (A) 10 (B) (C) (D) (A) (B) (C) (D) (E) 8. 37 53 63 127 143 (E) 25 2 10 100 10 If AB is parallel to CD , angle 1 contains 40°, and angle 2 contains 30°, find the number of degrees in angle FEG. (A) (B) (C) (D) (E) 110 140 70 40 30 The questions in the following area will expect you to recall some of the numerical relationships learned in geometry. If you are thoroughly familiar with these relationships, you should not find these questions difficult. As mentioned earlier, be particularly careful with units. For example, you cannot multiply a dimension given in feet by another given in inches when you are finding area. Read each question very carefully for the units given. In the following sections, all the needed formulas with illustrations and practice exercises are to help you prepare for the geometry questions on your test. www.petersons.com Geometry 199 1. AREAS A. Rectangle = base · altitude = bh Area = 40 B. Parallelogram = base · altitude = bh Area = 40 Notice that the altitude is different from the side. It is always shorter than the second side of the parallelogram, as a perpendicular is the shortest distance from a point to a line. 1 2 1 dd 212 C. Rhombus = · product of the diagonals = If AC = 20 and BD = 30, the area of ABCD = 1 (20)(30) = 300 2 www.petersons.com 200 Chapter 13 D. Square = side · side = s2 Area = 25 Remember that every square is a rhombus, so that the rhombus form...
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## This note was uploaded on 08/15/2010 for the course MATH a4d4 taught by Professor Colon during the Spring '10 term at Embry-Riddle FL/AZ.

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