1-2 Practice A

Name
LESSON
1-2
Date
Class
Practice A
Measuring and Constructing Segments
Complete the statements.
coordinate
1. The number a point corresponds to on a number line is called its
.
distance
between any two points on a number line is the absolute
2. The
value of the difference of the coordinates.
Find the coordinate of each point.
!
3. D
"
#
$
7
%
4. B
2
5. A
0
7. BC
1
8. AE
10
Find each length.
5
6. DB
Complete the exercises.
length
9. Congruent segments are segments that have the same
_
.
_
10. Use a compass to construct FG on line ᐉ congruent to QR .
1
2
'
&
_
11. Point K is the midpoint of JL , and KL 4. Find JK.
*
+
4
,
A driver heading south on Highway 1 from Homestead,
Florida, sees this road sign:
12. Find the distance in miles from Key Largo to Key West.
+EY,ARGO
)SLAMORADA
+EY7EST
113 miles
13. Find the distance in miles to the midpoint between Key Largo and Islamorada.
35 miles
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
11
Holt Geometry
Name
Date
Class
Practice B
LESSON
1-2
Measuring and Constructing Segments
Draw your answer in the space provided.
_
_
1. Use a compass and straightedge to construct XY congruent to UV .
5
6
8
9
Find the coordinate of each point.
"
%
$
2. D
0
#
3. C
2
4. E
3.5
6. DB
4
7. EC
5.5
Find each length.
5. BE
0.5
For Exercises 8–11, H is between I and J.
8. HI 3.9 and HJ 6.2. Find IJ.
10.1
9. JI 25 and IH 13. Find HJ.
12
_
10. H is the midpoint of IJ , and IH 0.75. Find HJ.
_
11. H is the midpoint of IJ , and IJ 9.4. Find IH.
0.75
4.7
Find the measurements.
12.
+
X
X
,
-
X
Find LM.
7
13. A pole-vaulter uses a 15-foot-long pole. She grips the
pole so that the segment below her left hand is twice
the length of the segment above her left hand. Her right
hand grips the pole 1.5 feet above her left hand. How far
up the pole is her right hand?
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
12
11.5 ft
Holt Geometry
1-2
Exercises
KEYWORD: MG7 1-2
KEYWORD: MG7 Parent
GUIDED PRACTICE
Vocabulary Apply the vocabulary from this lesson to answer each question.
_
_
1. Line ℓ bisects XY at M and divides XY into two equal parts. Name a pair of congruent
segments.
2. __?__ is the amount of space between two points on a line. It is always expressed as a
nonnegative number. (distance or midpoint)
SEE EXAMPLE
1
p. 13
SEE EXAMPLE
3. AB
2
p. 15
p. 15
SEE EXAMPLE
5
p. 16
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���
_
�
6. B is between A and C, AC = 15.8, and AB = 9.9. Find BC.
�
7. Find MP.
SEE EXAMPLE 4
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5. Sketch, draw, and construct a segment congruent to RS.
�
3
�
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����
4. BC
p. 14
SEE EXAMPLE
�
Find each length.
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8. Travel If a picnic area is located at the midpoint
between Sacramento and Oakland, find the distance
to the picnic area from the road sign.
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�������
_
9. Multi-Step K is the midpoint of JL, JL = 4x - 2,
and JK = 7. Find x, KL, and JL.
�
��
���
_
10. E bisects DF, DE = 2y, and EF = 8y - 3. Find DE, EF, and DF.
PRACTICE AND PROBLEM SOLVING
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13. Sketch, draw, _
and construct a segment twice
the length of AB.
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�
���
�
�
14. D is between C and E, CE = 17.1, and DE = 8. Find CD.
�
15. Find MN.
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16. Sports During a football game, a quarterback
standing at the 9-yard line passes the ball to a
receiver at the 24-yard line. The receiver then
runs with the ball halfway to the 50-yard line.
How many total yards (passing plus running)
did the team gain on the play?
��
Skills Practice p. S4
Application Practice p. S28
��
�
��
Extra Practice
12. CD
�
��
1
2
3
4
5
11. DB
�
��
11–12
13
14–15
16
17–18
�
Find each length.
��
Independent Practice
For
See
Exercises Example
_
17. Multi-Step E is the midpoint of DF, DE = 2x + 4, and EF = 3x - 1.
Find DE, EF, and DF.
_
18. Q bisects PR, PQ = 3y, and PR = 42. Find y and QR.
1- 2 Measuring and Constructing Segments
17