Preparing for the Regents Examination Geometry, AK

5 (3) (x, y) → (x, 2y)
6 (1) translation
7 (1) rotation
8 (1) A
9 (4) D
10 (2) (5, 4)
11 (3) reflection in the line y x
12 (2) (x, y) → (4x, 2y)
13 (4) y 0
14 (3) r x 1 r y-axis
15 (1) _ 1
2
16 (4)
17 (3) (6, 1)
18 5
19 13
20 2 √ 10
21 13
22 3 √ 10
23 (1, 1)
24 (2, 6)
25 (3, 0)
26 (4, 1)
27 r y x (1, 8) (8, 1)
Polygon Sides and
Angles
7-1 Basic Inequality
Postulates
(pages 125–126)
Note: Since there are many variations of proofs,
the following is simply one set of acceptable
statements to complete each proof. Depending
on the textbook used, the wording and format
of reasons may differ, so they have not been
supplied for the method of congruence applied
34 Chapter 7: Polygon Sides and Angles
28 (4, 9)
29 a (2, 2)
b (4, 0)
c (2, 2)
d (2, 2)
e (3, 2)
30 a and c
H
C
10
8
6
4
2
14 12 10 8 6 4 2
2 4 6 8 10 12
T"(8, 2)
14
2
b r y x
C"(2, 10)
4
6
8
10
y
T
C'(4, 3)
CHAPTER
7
T'(9, 1)
H'(10, 3)
in each problem. (These solutions are intended
to be used as a guide— other possible solutions
may vary.)
1 1. m1 m2
2. m2 m1
3. m2 m3
4. m3 m2
5. m3 m1 ( Transitive postulate of
inequality)
6. m1 m3
H"(10, 10)
x