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15. Given: AB = BC 41 = 42 Prove: AD = CB Which reasons given below could be used for step 3 of the proof? Statements Reasons 1. AB = CD, 41 = 42 1. Given 2. AC = AC 2. Congruence of segments is reflexive. 3. AABC = CDA 3. 4. AD = CB 4. CPCTC A. AAS B. ASA C. SSS D. SAS 16. Which of the following is a valid conclusion based on the statements below? Statement 1: If Sarah doesn't watch television, then she reads. Statement 2: If Sarah reads, then she uses her imagination. A. If Sarah uses her imagination, then she doesn't watch television. B. If Sarah doesn't use her imagination, then she doesn't watch television. C. If Sarah reads, then she doesn't watch television. D. If Sarah doesn't watch television, then she uses her imagination. Geometry Q 3 Pre-Assessment Form A 17. What is the length of the diagonals in rectangle ABCD with A(-2, 7), B(4, -1), C(0, -4), D(-6, 4)? D B 1C IC A. 10V5 B. 5V5 C. 10 D. 5 18. A polygon has four sides and no right angles. Opposite sides of this polygon are parallel and equal in length. The polygon cannot be a... A. parallelogram B. rectangle C. quadrilateral D. rhombus 19. The sum of the measures of the interior angles of an octagon is A. 900 B. 1080 C. 1260 D. 1440