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37.
Sample answer: Some toys use pieces to form
polygons. Others have polygonshaped pieces that
connect together. Answers should include the
following.
•triangles, quadrilaterals, pentagons
•
38.
A square has four congruent sides. If one side
remains to be fenced, three sides have been
fenced. So each side has length
}
1
3
}
(3
x
) or
x
meters.
39.
D; 5
n
1
5
5
¬
10
5
n
5
¬
5
n
5
¬
1
11
2
n
5
¬
11
2
1
5
10
Page 50
Maintain Your Skills
40.
Always; true by the definitions of linear pairs and
supplementary angles.
41.
Sometimes; angles with measures 100 and 80 are
supplementary but two right angles are also
supplementary.
42.
AM
#
#$
bisects
/
RAL
, so
/
MAR
>
/
MAL
.
m
/
MAR
5
¬
m
/
MAL
2
x
1
13
5
¬
4
x
2
3
2
x
1
16
5
¬
4
x
16
5
¬
2
x
8
5
¬
x
m
/
RAL
5
¬
m
/
MAR
1
m
/
MAL
5
¬
2
x
1
13
1
4
x
2
3
5
¬
2(8)
1
13
1
4(8)
2
3 or 58
43.
AM
#
bisects
/
RAL
, so
/
MAR
>
/
LAM
and
m
/
RAL
5
¬
2
?
m
/
MAR
.
x
1
32
5
¬
2(
x
2
31)
x
1
32
5
¬
2
x
2
62
x
1
94
5
¬
2
x
94
5
¬
x
m
/
LAM
5
m
/
MAR
5
¬
x
2
31
5
¬
94
2
31
5
63
44.
AS
#
bisects
/
MAR
, so
/
RAS
>
/
SAM
.
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This note was uploaded on 12/19/2011 for the course MAC 1140 taught by Professor Dr.zhan during the Fall '10 term at UNF.
 Fall '10
 Dr.Zhan
 Calculus, PreCalculus, Angles, Polygons, Quadrilaterals

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