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Preparing for the Regents Examination Geometry, AK

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20 Score Explanation<br />

6 The following proof or ano<strong>the</strong>r appropriate proof is given.<br />

Statements Reasons<br />

1. −−<br />

BC −−−<br />

AD 1. Given.<br />

2. −−<br />

BC −−−<br />

AD 2. Given.<br />

3. EAD FCB 3. Alternate interior angles are congruent.<br />

4. −−<br />

BF −−<br />

ED 4. Given.<br />

5. BFC DEA 5. Alternate interior angles are congruent.<br />

6. BFC DEA 6. AAS AAS.<br />

7. −−<br />

BF −−<br />

ED 7. CPCTC.<br />

5 An appropriate proof with correct conclusion is shown, but one reason is faulty and/or<br />

one statement is missing.<br />

4 A faulty conclusion or no conclusion is drawn from <strong>the</strong> statements and reasoning.<br />

3 An appropriate proof with correct conclusion is shown, but two reasons are faulty or<br />

two steps are missing.<br />

2 An appropriate proof with correct conclusion is used, but more than two reasons are<br />

faulty or more than two steps are missing or have errors.<br />

1 −−<br />

BF −−<br />

ED and a reason is given, but no appropriate method is shown.<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.<br />

Chapters 1–10<br />

(pages 464–466)<br />

Part I<br />

Allow a total of 20 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 (2) 360<br />

2 (4) 140<br />

3 (1) 22<br />

4 (3) y x<br />

5 (3) 8<br />

6 (3) a rhombus<br />

Part II<br />

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

11 Score Explanation<br />

7 (1) y 1 _ x <br />

3 10 _<br />

3<br />

8 (4) The diagonals bisect <strong>the</strong> angles of<br />

<strong>the</strong> parallelogram.<br />

9 (1) adjacent<br />

10 (3) m4 mB<br />

2 120, and an appropriate explanation is given.<br />

1 120, 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.<br />

Chapters 1–10 119

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