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Preparing for the Regents Examination Geometry, AK

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Chapters 1–3<br />

(pages 438–441)<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 (3) 80<br />

2 (2) 54<br />

3 (1) Subtraction postulate<br />

4 (4) If Cecilia is not a senior, <strong>the</strong>n she does not take AP Calculus.<br />

5 (4) 22<br />

6 (3) If a triangle is not equilateral, <strong>the</strong>n it is not isosceles.<br />

7 (1) 20<br />

8 (3) 1 _<br />

2<br />

9 (4) 3 _<br />

2<br />

10 (2) b c<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 />

2 70, and an appropriate explanation is given.<br />

1 70, 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 />

12 Score Explanation<br />

2 Affirming <strong>the</strong> conclusion does not affirm <strong>the</strong> premise.<br />

a The quadrilateral could be rhombus or any o<strong>the</strong>r figure.<br />

b x could be 7 or any o<strong>the</strong>r positive number less than 7, so that x is not greater than 8.<br />

1 Student answers only one part correctly.<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 />

13 Score Explanation<br />

2 mr 20, and an appropriate explanation is given.<br />

1 mr 20, 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 />

14 Score Explanation<br />

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

1 RB 2, 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 />

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