43.
2 and
6 are consecutive interior angles for
the same transversal, which makes them
supplementary because
WX
YZ
.
4 and
6 are
not necessarily supplementary because
WZ
may
not be parallel to
XY
.
44.
Sample answer: Angles and lines are used in art
to show depth, and to create realistic objects.
Answers should include the following.
•
Rectangular shapes are made by drawing
parallel lines and perpendiculars.
•
M. C. Escher and Pablo Picasso use lines and
angles in their art.
45.
C; Let
y
° be the measure of the third angle of the
right triangle in the figure.
160
¬
y
120
40
¬
y
x
y
90
¬
180
x
40
90
¬
180
x
¬
50
46.
C;
ax
¬
bx
c
ax
bx
¬
c
(
a
b
)
x
¬
c
x
¬
a
c
b
Page 138
Maintain Your Skills
47.
FG
48.
AB
,
DE
,
FG
,
IJ
,
AE
,
FJ
49.
CDH
50.
BG
,
CH
,
FG
,
HI
51.
m
1
124
¬
180
m
1
¬
56
52.
m
2
¬
53
53.
Hypothesis: it rains this evening
Conclusion: I will mow the lawn tomorrow
54.
Hypothesis: you eat a balanced diet
Conclusion: it will keep you healthy
55.
7
8
9
5
3
2
or
2
3
56.
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 Fall '10
 Dr.Zhan
 Calculus, PreCalculus, Angles, Prime number, M. C. Escher, Consecutive Interior angles

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