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17
Angles and Lines
Worksheet 1
Understanding and Identifying Angles
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Identify each figure as a part of a line or curve.
1.
2.
3.
4.
Identify each figure as a point, line, or line segment.
Example
B
A
A line segment is part of
a line. It has two
endpoints, A and B.
Line segment AB or BA
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5.
6.
C
D
E
7.
G
8.
J
K
F
9.
10.
11.
12.
176
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Do the line segments share a common endpoint?
Write yes or no. If there is a common endpoint, circle it.
Chapter 17 Lesson 17.1
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Name:
Date:
Mark and color an angle in each drawing.
Example
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angle
13.
14.
15.
16.
Draw another line segment to form an angle.
Circle the common endpoint.
Example
17.
18.
Reteach 3B
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Draw pairs of line segments to form two different angles.
19.
Mark and color two angles in each figure.
Example
21.
178
22.
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20.
Chapter 17 Lesson 17.1
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Draw a figure using 3 three line segments.
Mark and color 2 angles in the figure.
23.
For each pair of angles, shade the greater angle.
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Example
24.
25.
Reteach 3B
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Mark all the angles inside each plane shape.
Then write the number of angles.
Example
Number of angles:
3
Number of angles:
Number of angles:
Shade the angles in each letter.
Example
28.
180
29.
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27.
26.
Chapter 17 Lesson 17.1
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Mark two angles in each object.
30.
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31.
32.
33.
Reteach 3B
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Write the number of angles and number of sides of each figure.
Example
Number of sides:
Number of angles:
3
Number of sides:
Number of sides:
Number of angles:
Number of angles:
36.
37.
Number of sides:
Number of sides:
Number of angles:
Number of angles:
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35.
34.
182
3
Chapter 17 Lesson 17.1
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Worksheet 2
Right Angles
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Look at these angles.
Use a piece of folded paper
to help you answer the question.
a
b
d
e
1.
Which angles are less than right angles?
2.
Which angles are greater than right angles?
3.
Which angle is the same size as a right angle?
c
f
Reteach 3B
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Mark all the right angles in each figure. Use a piece of folded paper
to help you.
Example
The corner of a folded paper
is a right angle.
4.
5.
6.
7.
184
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There are 4 right angles in a
square.
Chapter 17 Lesson 17.2
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Circle the triangles that have right angles.
Then mark all the right angles.
Use a piece of folded paper
to help you.
8.
A
B
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D
C
Mark all the right angles in each figure.
Use a piece of folded paper
to help you.
9.
Reteach 3B
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12.
186
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Name:
Date:
10.
11.
Chapter 17 Lesson 17.2
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Worksheet 3
Perpendicular Lines
Circle the figures that have two lines that meet at right angles.
Use a piece of folded paper
to help you.
1.
B
A
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C
D
Are the lines perpendicular?
Write yes or no.
2.
Perpendicular lines are lines
that meet at right angles.
Reteach 3B
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3.
Identify and name a pair of perpendicular line segments
on each object.
6.
188
A
B
C
D
5.
A
B
C
D
7.
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4.
Chapter 17 Lesson 17.3
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Worksheet 4
Parallel Lines
Circle the pairs of lines that will not meet no matter how long you
draw them.
1.
A
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C
B
D
Are the pairs of lines parallel?
Write yes or no.
2.
Parallel lines are lines that
will not meet no matter how
long you draw them.
The distance between them is
always the same.
Reteach 3B
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Date:
3.
Identify and name a pair of parallel line segments on each object.
A
C
6.
5.
B
7.
B
E
B
C
D
E
F
G
H
D
A
A
I
J
A
B
C
D
C
D
G
F
190
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4.
Chapter 17 Lesson 17.4
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