45.
B;
By plotting choices A, C, and D on the graph, it is
obvious that they cannot be the fourth vertex.
Choice B is the only possibility.
(
2
2, 2) and (8, 2) have the same
y
component.
These are the endpoints of a horizontal segment
10 units long.
(11,
2
6) and (1,
2
6) have the same
y
component.
These are also the endpoints of a horizontal
segment 10 units long.
These two sides of the quadrilateral are
congruent and parallel, so the quadrilateral is a
parallelogram.
46.
C; use the Distance Formula to find the distance
between
X
and
Y
.
XY
5
¬
Ï
(
x
2
2
w
x
1
)
2
1
w
(
y
2
2
w
y
1
)
2
w
5
¬
Ï
(
2
3
2
w
5)
2
1
w
(
2
4
2
w
7)
2
w
5
¬
Ï
185
w
Page 423
Maintain Your Skills
47.
The diagonals of a parallelogram bisect each
other, so
ML
5
LQ
.
Find
w
.
ML
5
¬
LQ
w
5
¬
12
48.
Opposite sides of a parallelogram are congruent,
so their measures are equal.
Find
x
.
NQ
5
¬
MR
3
x
1
2
5
¬
4
x
2
2
4
5
¬
x
49.
Opposite sides of a parallelogram are congruent,
so their measures are equal.
Find
This is the end of the preview. Sign up
to
access the rest of the document.
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

Click to edit the document details