Preparing for the Regents Examination Geometry, AK

Preparing for the Regents Examination Geometry, AK Preparing for the Regents Examination Geometry, AK

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20 Score Explanation 6 The following proof or another appropriate proof is given. Statements Reasons 1. AE CE 1. Given. 2. ___ AE ___ CE 2. Congruent arcs have congruent chords. 3. ABE EBD 3. Congruent central angles have congruent chords. 4. −− FE is tangent to O at E. 4. Given. 5. FEB is a right angle. 5. Definition of a tangent. 6. FEB and BED are a linear pair. 7. FEB and BED are supplementary. 6. Definition of linear pair. 7. Two angles that form a linear pair are supplementary. 8. BED is a right angle. 8. A supplement to a right angle is a right angle. 9. Diameter −−− BOE 9. Given. 10. BCE is a semicircle. 10. Definition of a semicircle. 11. BAE is a right angle. 11. An angle inscribed in a semicircle is always a right angle. 12. BAE BED 12. Right angles are congruent. 13. ABE EBD 13. AA. 14. BE _ BA BD _ BE 14. Corresponding parts of similar triangles are in proportion. 5 An appropriate proof with correct conclusion is shown, but one reason is faulty and/or one statement is missing. 4 A faulty conclusion or no conclusion is drawn from the statements and reasoning. 3 An appropriate proof with correct conclusion is shown, but two reasons are faulty or two steps are missing. 2 An appropriate proof with correct conclusion is shown, but multiple reasons are faulty or multiple steps are missing or have errors. 1 BE _ BD BA _ , and a reason is given, but no appropriate method is shown. BE 0 A zero response is completely incorrect, irrelevant, or incoherent or is a correct response that was obtained by an obviously incorrect procedure. Chapters 1–14 137

Practice Regents Examination One (pages 483–489) Part I Allow a total of 56 credits, 2 credits for each of the following correct answers. Allow credit if the student has written the correct answer instead of the numeral 1, 2, 3, or 4. 1 (3) 1 _ 2 2 (2) 8 √ 2 3 (1) 1 _ b 2 2 4 (1) 48 5 (2) 8 √ 3 6 (2) 12 7 (4) r : 2 8 (4) 106 9 (1) 8 10 (3) AEC is a right angle. 138 11 (3) (9, 3) 12 (1) 6 13 (4) 16 : 81 14 (3) 18 15 (4) 1 16 (2) 26 17 (4) 16 18 (2) y 19 (2) 6 √ 2 20 (1) 86 21 (2) 18 22 (2) (0, 1) Part II For each question, use the specific criteria to award a maximum of 2 credits. 29 Score Explanation Practice Geometry Regents Examinations 23 (4) 4 24 (3) right 25 (2) 9 26 (3) x 3 27 (4) I and II only 28 (3) 1 _ V 8 2 (x 2) 2 (y 4) 2 2.25, and an appropriate explanation is given. 1 (x 2) 2 (y 4) 2 2.25, but no explanation is given. 0 A zero response is completely incorrect, irrelevant, or incoherent or is a correct response that was obtained by an obviously incorrect procedure.

Practice <strong>Regents</strong> <strong>Examination</strong> One<br />

(pages 483–489)<br />

<br />

Part I<br />

Allow a total of 56 credits, 2 credits <strong>for</strong> each of <strong>the</strong> following correct answers. Allow credit if <strong>the</strong> student has<br />

written <strong>the</strong> correct answer instead of <strong>the</strong> numeral 1, 2, 3, or 4.<br />

1 (3) 1 _<br />

2<br />

2 (2) 8 √ 2<br />

3 (1) 1 _ b<br />

2 2<br />

4 (1) 48<br />

5 (2) 8 √ 3<br />

6 (2) 12<br />

7 (4) r : 2<br />

8 (4) 106<br />

9 (1) 8<br />

10 (3) AEC is a<br />

right angle.<br />

138<br />

11 (3) (9, 3)<br />

12 (1) 6<br />

13 (4) 16 : 81<br />

14 (3) 18<br />

15 (4) 1<br />

16 (2) 26<br />

17 (4) 16<br />

18 (2) y<br />

19 (2) 6 √ 2 <br />

20 (1) 86<br />

21 (2) 18<br />

22 (2) (0, 1)<br />

Part II<br />

For each question, use <strong>the</strong> specific criteria to award a maximum of 2 credits.<br />

29 Score Explanation<br />

Practice <strong>Geometry</strong><br />

<strong>Regents</strong> <strong>Examination</strong>s<br />

23 (4) 4<br />

24 (3) right<br />

25 (2) 9<br />

26 (3) x 3<br />

27 (4) I and II only<br />

28 (3) 1 _ V<br />

8<br />

2 (x 2) 2 (y 4) 2 2.25, and an appropriate explanation is given.<br />

1 (x 2) 2 (y 4) 2 2.25, but no explanation is given.<br />

0 A zero response is completely incorrect, irrelevant, or incoherent or is a correct response<br />

that was obtained by an obviously incorrect procedure.

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