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This printable supports Common Core Mathematics Standards 4.G.A.1

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# Identifying Lines and Angles (Grade 4)

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## Identifying Lines and Angles

1.
This angle is obtuse.
1. True
2. False

2.
This angle is acute.
1. True
2. False
3.
Name the angle.
1. acute
2. obtuse
3. right

4.
Name the angle.
1. acute
2. obtuse
3. right
5.
Which shows a right angle?

6.
Which shows a pair of perpendicular lines?
7.
Which shows a pair of perpendicular lines?

8.
Which shows a pair of parallel lines?
9.
Which shows a pair of parallel lines?

10.
Which shows a pair of parallel lines?
11.
Which shows a pair of perpendicular lines?

12.
Which shows a pair of parallel lines?
13.
Which shows a pair of perpendicular lines?

14.
Which TWO shapes appear to have at least 2 sets of perpendicular lines?
15.
Which TWO statements about the angle shown are true?
1. Angle ABC is acute.
2. Angle ABC is obtuse.
3. Angle ABC is less than $180deg.$
4. Angle ABC is equal to $180deg.$
5. Angle ABC is greater than $180deg.$

16.
What type of angle is $angCAB$?
1. acute
2. obtuse
3. right
4. straight
17.
In the figure shown, $angABC$ would best be described as                .
1. right
2. acute
3. obtuse
4. straight

18.
Which of the following statements is true about the trapezoid shown?
1. It has one set of parallel lines.
2. It has two sets of parallel lines.
3. It has one set of perpendicular lines.
4. It has two sets of perpendicular lines.
19.
All the angles in the hexagon shown are                .
1. right
2. acute
3. obtuse
4. straight

20.
Which angle is NOT formed by the intersecting lines shown?
1. right
2. acute
3. obtuse
4. both a and c
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