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Classifying Angles

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1.
Which of the following best describes the angle shown?
1. right
2. acute
3. obtuse
4. straight

2.
Which of the following best describes the angle shown below?
1. right
2. acute
3. obtuse
4. straight
3.
Which of the following best describes the angle shown below?
1. right
2. acute
3. obtuse
4. straight

4.
Which of the following best describes the angle shown?
1. right
2. acute
3. obtuse
4. straight
5.
In the figure shown, $angABC$ would best be described as                .
1. right
2. acute
3. obtuse
4. straight

6.
In the figure below, $angDBA$ would best be described as                .
1. right
2. acute
3. obtuse
4. straight
7.
Which type of angle is $angACB$ in the triangle?
1. right
2. acute
3. obtuse
4. straight

8.
Which type of angle is $angBAC$ in the triangle shown?
1. right
2. acute
3. obtuse
4. straight
9.
Which type of angle is $angCBA$ in the parallelogram below?
1. right
2. acute
3. obtuse
4. straight

10.
All the angles in the hexagon shown are                .
1. right
2. acute
3. obtuse
4. straight
11.
Name an obtuse angle shown on the figure.

Name an acute angle shown on the figure.
• obtuse $angABC$
acute $angDBC$

12.
Name an obtuse angle shown on the figure.

Name an acute angle shown on the figure.
• obtuse $angABC$
acute $angDBC$
13.
Name an obtuse angle shown on the triangle.

Name an acute angle shown on the triangle.
• obtuse $angBAC$
acute $angACB$ or $angABC$

14.
Name an obtuse angle shown on the trapezoid.

Name an acute angle shown on the trapezoid.
• obtuse $angABC$ or $angBCD$
acute $angBAD$ or $angADC$
15.
Identify each of the angles shown on the circle below as right, acute, obtuse, or straight.

$angCAD$

$angCAB$

$angDAO$

$angAOB$

$angBOD$

$angAOD$
• $angCAD$ obtuse
$angCAB$ acute
$angDAO$ right
$angAOB$ straight
$angBOD$ obtuse
$angAOD$ acute
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