Preparing for the Regents Examination Geometry, AK

Practice Regents Examination Two
(pages 490–496)
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 (1) −−
EK −−
EY
2 (4) 150
3 (1) 4 √ 3
4 (3) 1 _
2
5 (3) 36
6 (4) R 90
7 (4) Use the slope formula
to prove diagonals are
perpendicular.
8 (2) 105
9 (4) {2, 5, √ 29 }
10 (2) 120
11 (2) 20 √ 3
12 (3) 24
13 (1) 28
14 (3) 160
15 (3) 2
16 (1) 4 _ 3
units
3
17 (4) 6 s 2x
18 (4) 11
19 (3) 8
20 (3) 15
Part II
For each question, use the specific criteria to award a maximum of 2 credits.
29 Score Explanation
21 (2) 5
22 (1) 64 cm 3
23 (4) 4
24 (3) perpendicular
bisectors of the sides
of the triangle
25 (2) 5 √ 2
26 (4) 36
27 (1) BC AB
28 (3) equal in area
2 69, and an appropriate explanation is given.
1 69, 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.
30 Score Explanation
2 (x 4) 2 (y 5) 2 9, and an appropriate explanation is given.
1 (x 4) 2 (y 5) 2 9, 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.
31 Score Explanation
2 (2x, 3y), and an appropriate explanation is given.
1 (2x, 3y), 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 Regents Examination Two 141