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I only ii and iii only ii only iii only i and ii only

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Unformatted text preview: 2 of its intercepted arcs. 1 40 = ( x − 20) 2 80 = x − 20 100 = x 1 9. ∠CDE must equal 65° because there are 180° in a triangle. Since AB is parallel to CD , ∠x = ∠CDE = 65°. (D) V = l · w · h = 2 · 6 · 18 = 216 The volume of a cube is equal to the cube of an edge. V = e3 216 = e3 6=e 10. (B) If the volume ratio is 8 : 1, the linear ratio is 2 : 1, and the area ratio is the square of this, or 4:1. www.petersons.com Inequalities 14 4. In triangle ABC, AB = AC and EC < DB. Then DIAGNOSTIC TEST Directions: Work out each problem. Circle the letter that appears before your answer. Answers are at the end of the chapter. 1. If 4x < 6, then (A) (B) (C) (D) (E) 2. x = 1.5 2 3 2 x> 3 3 x< 2 3 x> 2 x< a and b are positive numbers. If a = b and c > d, then (A) a + c < b + d (B) a + c > b + d (C) a – c > b – d (D) ac < bd (E) a + c < b – d Which value of x will make the following expression true? 3x4 < < 5 10 5 (A) (B) (C) (D) (E) 5. DB < AE DB < AD AD > AE AD < AE AD > EC In triangle ABC, ∠1 > ∠2 and ∠2 > ∠3. Then 3. (A) (B) (C) (D) (E) 5 6 7 8 9 (A) (B) (C) (D) (E) 6. AC < AB AC > BC BC > AC BC < AB ∠3 > ∠1 If point C lies between A and B on line segment AB, which of the following is always true? (A) AC = CB (B) AC > CB (C) CB > AC (D) AB < AC + CB (E) AB = CB + AC 231 232 Chapter 14 7. If AC is perpendicular to BD, which of the following is always true? I. AC = BC II. AC < AB III. AB > AD 9. In triangle ABC, BC is extended to D. If ∠A = 50° and ∠ACD = 120°, then (A) BC > AB (B) AC > AB (C) BC > AC (D) AB > AC (E) ∠B < ∠A (A) (B) (C) (D) (E) 8. I only II and III only II only III only I and II only 10. In right triangle ABC, ∠A < ∠B and ∠B < ∠C. Then (A) ∠A > 45° (B) ∠B = 90° (C) ∠B > 90° (D) ∠C = 90° (E) ∠C > 90° If x < 0 and y > 0, which of the following is always true? (A) x + y > 0 (B) x + y < 0 (C) y – x < 0 (D)...
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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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