Classifying Angles

Target: Classifying Angles

Indentifying angles and learning about complementary and supplementary angles

Multiple Choice

An angle that is exactly 90 degrees.

• right

• acute

• obtuse

• straight

Multiple Choice

An angle that is exactly 180^o.

• right

• acute

• obtuse

• straight

Multiple Choice

An angle that is exactly 90 degrees.

• right

• acute

• obtuse

• straight

Draw

Sketch an obtuse triangle.

Multiple Choice

Classify the angle

• acute

• obtuse

• right

• straight

Multiple Choice

Classify this angle.

• Straight angle

• Supplementary angles

• Acute angle

• Obtuse angle

Multiple Choice

Classify the angle

• acute

• obtuse

• right

• straight

Explanation Slide...

Your triangle should have one angle that is greater than 90°

Multiple Choice

An angle that is exactly 180^o.

• right
• acute
• obtuse
• straight

Multiple Choice

An angle that is less than 90^o.

• right
• acute
• obtuse
• straight

Multiple Choice

An angle that is more than 90^o.

• right
• acute
• obtuse
• straight

Multiple Choice

An angle that measures 76^o.

• right
• acute
• obtuse
• straight

Multiple Choice

An angle that measures 90^o.

• right
• acute
• obtuse
• straight

Multiple Choice

An angle that measures 133^o.

• right
• acute
• obtuse
• straight

Multiple Choice

An angle that measures 12^o.

• right
• acute
• obtuse
• straight

Multiple Choice

An angle that measures 180^o.

• right
• acute
• obtuse
• straight

Multiple Choice

An angle that measures 89^o.

• right
• acute
• obtuse
• straight

Multiple Choice

An angle that measures 94^o.

• right
• acute
• obtuse
• straight

Multiple Choice

This slice of pizza at the bottom makes what kind of angle?

• right
• acute
• obtuse
• straight

Multiple Choice

This lighthouse to the boat makes what type of angle?

• right
• acute
• obtuse
• straight

Multiple Choice

This angle is an example of what type of angle?

• right
• acute
• obtuse
• straight

Multiple Choice

Congruent means:

• angles that are opposite from each other
• angles that are less than 90^o
• angles that add up to 180^o
• angles that have the same measurement

Multiple Choice

The point where 2 rays meet is called the....

• right angle
• acute angle
• vertex
• congruent

Multiple Choice

What are vertical angles?

• Angles that are adjacent to each other
• Angles that add up to 180°
• Angles that are opposite of each other when lines intersect
• Angles that add up to 90°

Multiple Choice

Vertical angles are always

• acute
• total 180 degrees
• congruent (equal measures)
• adjacent angles

Multiple Choice

What does it mean if two angles are adjacent?

• They share a side and a vertex
• They are opposite each other across an intersection of two lines
• They share only a vertex, not a side
• none of the above

Multiple Choice

Find the missing angle.  Find x.

• 20^o

• 70^o

• 160^o

• 180^o

Multiple Choice

I am a....

• Right angle

• Acute angle

• Obtuse angle

• Straight angle

Multiple Choice

Right, acute, or obtuse?

• Acute

• Right

• Obtuse

Multiple Choice

Which one is an acute angle?

Multiple Choice

What type of angle is shown?

• Acute

• Obtuse

• Right

• Straight

Is this an example of COMPLEMENTARY angles?

YES, because the two angles ADD UP TO 90 DEGREES.

Multiple Choice

What is an example of a pair of complementary angles?

• 13° and 45°

• 10° and 170°

• 81° and 9°

• 90° and 3°

Multiple Choice

Find the missing angle.

• 70

• 50

• 30

• 40

Multiple Choice

Are these angles an example of complementary angles, supplementary angles, or neither?

• Complementary angles

• Supplementary angles

• Neither

Is this an example of SUPPLEMENTARY ANGLES?

YES, because they ADD UP TO 180 degrees!

Is this an example of SUPPLEMENTARY ANGLES?

YES, because they ADD UP TO 180 degrees!

Multiple Choice

Find the missing angle

• x = 118

• x = 108

• x = 28

• x = 58

Multiple Choice

Are these angles an example of complementary angles, supplementary angles, or neither?

• Complementary angles

• Supplementary angles

• Neither

Multiple Choice

What is the measure of the missing angle?

• 76

• 86

• 166

• 156

Multiple Choice

XY is a straight line. Find

$$\angle\ z$$ .

• $$90\degree$$  

• $$105\degree$$  

• $$180\degree$$  

• $$95\degree$$  

Multiple Choice

RS is a straight line.  If  $$y=48\degree$$ , find the value of  $$\angle\ x$$ .

• $$128\degree$$  

• $$142\degree$$  

• $$180\degree$$  

• $$132\degree$$  

Multiple Choice

• x = 118

• x = 108

• x = 28

• x = 58

Multiple Choice

Find the supplementary angle for 104 degrees...

• 70 degrees

• 74 degrees

• 76 degrees

Multiple Choice

Find the supplementary angle for 69 degrees...

• 111 degrees

• 116 degrees

• 118 degrees

Multiple Choice

These angles are...

• Complementary

• Supplementary

• Neither

Multiple Choice

These angles are...

• Complementary

• Supplementary

• Neither

Multiple Choice

complementary, supplementary, or neither?

• Complementary

• Supplementary

• Neither

Multiple Choice

What is the measure of the missing angle?

• 76

• 66

• 156

• 154

Multiple Choice

Using the given angle, what is the measure of angle 2?

• 25

• 155

• 145

• 180

Multiple Choice

Using the given angle measure, find the measure of angle 2.

• 140

• 180

• 50

• 40

Multiple Choice

Vertical angles are...

• Congruent

• Supplementary

• Different

• Vertical angles are formed by intersecting lines.

• Vertical angles are located across from each other and are congruent (equal in measure)

​

Vertical Angles

Multiple Choice

• m∠2 = 109°

  m∠3 = 71°

  m∠4 = 109°

• m∠2 = 71°

  m∠3 = 71°

  m∠4 = 109°

• m∠2 = 109°

  m∠3 = 71°

  m∠4 = 71°

Multiple Choice

• m∠1 = 131°

  m∠2 = 49°

  m∠4 = 49°

• m∠1 = 49°

  m∠2 = 131°

  m∠4 = 131°

• m∠1 = 131°

  m∠2 = 49°

  m∠4 = 131°