4th Grade Winter Break Tutorials Protractor & Angles

Using a Protractor

​What is a protractor

​A protractor is a tool used to measure angles.

​

​The angles are measured in DEGREES.

Multiple Choice

What is a protractor?

• An angle 

• A tool to measure angles 

• a math problem

• I don't konw

Multiple Choice

What are angles measured in?

• angles

• in

• degrees

• protractors

Multiple Choice

What is a ray?

• An angle

• A measurement

• A tool to measure angles

• A line

Multiple Choice

What is the meaurement of this angle?

• 150 degrees

• 0 degrees

• 50 degrees

• 130 degrees

Multiple Choice

• 120 degrees

• 80 degrees

• 100 degrees

• 0 degrees

Multiple Choice

• 145 degrees

• 155 degrees

• 35 degrees

• 0 degrees

Multiple Choice

• 20 degrees

• 160 degrees

• 180 degrees

• 0 degrees

Multiple Choice

• 180 degrees

• 125 degrees

• 55 degrees

• 65 degrees

Fill in the Blanks

Multiple Choice

• acute

• right

• obtuse

Multiple Choice

• acute

• right

• obtuse

• none of the above

Multiple Choice

• acute

• right

• obtuse

• none of the above

Multiple Choice

• acute

• right

• obtuse

• none of the above

Multiple Choice

What tool do we use to measure angles?

• Protractor

• Ruler

Draw

Draw an angle that is 60 degrees

Fill in the Blanks

Open Ended

Why are there two sets of numbers on a protractor?

Multiple Choice

How many degrees is angle MLN (the green section)?

• 45

• 90

• 120

• 60

Draw

Draw two different angles that are both 30 degrees.

Multiple Choice

The amount of the angle above is . . . .

• 40^o

• 60^o

• 80^o

• 130^o

Multiple Choice

Find the angle above

• 130^o

• 120^o

• 90^o

• 50^o

Multiple Choice

Find the angle above

• 50^o

• 53^o

• 127^o

• 130^o

Multiple Choice

Find the angle

• 90^o

• 50^o

• 40^o

• 35^o

Multiple Choice

What is the measurement of this angle?

• 165°

• 15°

• 135°

Multiple Choice

What is the measurement of this angle?

• 66°

• 54°

• 126°

• 134°

Multiple Choice

What type of angle is this?

• Obtuse

• Acute

• Right

Multiple Choice

What type of angle is this?

• Acute

• Obtuse

• Right

Multiple Choice

_{What is the measure of the following angle?}  

• 21 degrees.
• 34 degrees.
• 70 degrees.
• 172 degrees. 

Multiple Choice

_{What is the measure of the angle?}

• 110 degrees. 
• 140 degrees.
• 150 degrees.
• 170 degrees. 

Multiple Choice

Which shows an angle that is 162°?

Multiple Choice

Which of the following books is open 180°?

Multiple Choice

Which is closest to the measure of Angle G of the clothes hanger?

• 35°

• 45°

• 145°

• 155°

Multiple Choice

BONUS: Which clock shows the hands forming a 180° angle?

Multiple Choice

BONUS: Which clock shows the hands forming a 90° angle?

Multiple Choice

BONUS: Which clock shows the hands forming an acute angle?

Multiple Choice

BONUS: Which clock shows the hands forming an obtuse angle?

Multiple Choice

_{What is the measure of the following angle?}

• 21 degrees.

• 34 degrees.

• 70 degrees.

• 172 degrees.

Multiple Choice

_{What is the measure of the following angle?}

• 124 degrees.

• 180 degrees.

• 142 degrees.

• 97 degrees.

Multiple Choice

_{What is the measure of the following angle?}

• 78 degrees.

• 11 degrees.

• 190 degrees.

• 101 degrees.

Multiple Choice

_{What is the measure of the following angle?}

• 11 degrees.

• 40 degrees.

• 67 degrees.

• 168 degrees.

Multiple Choice

_{What is the measure of the angle?}

• 110 degrees.

• 140 degrees.

• 150 degrees.

• 170 degrees.

Multiple Choice

_{What is the measure of the following angle?}

• 120 degrees.

• 171 degrees.

• 60 degres.

• 10 degrees.

Multiple Choice

_{What is the measure of the following angle?}

• 56 degrees.

• 123 degrees.

• 142 degrees.

• 47 degrees.

Multiple Choice

What is the measure of the angle shown in the picture?

• 30 degrees

• 35 degrees

• 140 degrees

• 145 degrees

Multiple Choice

What is the measure and type of the angle shown in the picture?

• 53 degrees; acute

• 53 degrees; obtuse

• 127 degrees; acute

• 127 degrees; obtuse

Multiple Choice

What is the measure of the angle shown in the picture?

• 0 degrees

• 45 degrees

• 90 degrees

• 180 degrees

Multiple Choice

What is this tool called and what is it used for?

• A ruler used to measure lines.

• A protractor used to measure lines.

• A ruler used to measure angles.

• A protractor used to measure angles.

Multiple Choice

_{What is the measure of the following angle?}

• 102 degrees.

• 11 degrees.

• 190 degrees.

• 58 degrees.

Multiple Choice

Describe this angle.

• acute

• obtuse

• right

• straight

Multiple Choice

What is the measure of this angle?

(This is the angle you described in the previous question.)

• 125 degrees

• 65 degrees

• 75 degrees

• 115 degrees

Multiple Choice

Describe the angle.

• acute

• obtuse

• right

• straight

Multiple Choice

What is the measure of this angle?

(This is the angle you described in the previous question.)

• 60 degrees

• 120 degrees

• 180 degrees

• 0 degrees

Multiple Choice

Describe this angle.

• acute

• obtuse

• right

• straight

Multiple Choice

What is the measure of this angle?

(This is the angle you described in the previous question.)

• 95 degrees

• 85 degrees

• 105 degrees

• 180 degrees

Multiple Choice

Describe this angle.

• acute

• obtuse

• right

• straight

Multiple Choice

What is the measure of this angle?

(This is the angle you described in the previous question.)

• 25 degrees

• 35 degrees

• 155 degrees

• 165 degrees

Multiple Choice

Describe the angle.

• acute

• obtuse

• right

• straight

Multiple Choice

What is the measure of the angle?

(This is the angle you described in the previous question.)

• 35 degrees

• 45 degrees

• 145 degrees

• 155 degrees

Multiple Choice

Describe the angle.

• acute

• obtuse

• right

• straight

Multiple Choice

What is the measure of the angle?

(This is the angle you described in the previous question.)

• 0 degrees

• 90 degrees

• 180 degrees

• 360 degrees

4.NC.MD.6

In this lesson, we will identify and draw angles.

Six Types of Angles

In this lesson students will learn how to identify different types of angles.

Right Angle

An angle of 90°, as in a corner of a square or at the intersection of two perpendicular straight lines.

Acute Angle

An acute angle is an angle that measures between 90° and 0°, meaning it is smaller than a right angle (an “L” shape) but has at least some space between the two lines that form it.

Obtuse Angle

In Geometry, an obtuse angle is an angle that is greater than 90° and less than 180°

Straight Angle

A straight angle always forms a straight line. The value of the straight angle is 180°.

Reflex Angles

A reflex angle is the larger angle, it’s always more than 180° (half a circle) but less than 360° (A full circle). It’s possibly the most confusing of the angles because it’s always on the outside.

Full Angle

A Full Angle is an angle that has a measure of exactly 360°. I looks like a circle.

Multiple Choice

What angle is shown in the picture?

• Right

• Obtuse

• Straight

• Acute

Multiple Choice

What angle is shown in the picture?

• Right

• Obtuse

• Straight

• Acute

Multiple Choice

What angle is shown in the picture?

• Right

• Obtuse

• Straight

• Acute

Multiple Choice

Mrs. Royster wants her door to open to a right angle. It is already opened 73°. How many more degrees does she need to open it to have it open at a right angle?

• Straight

• 11⁰

• 13⁰

• 17⁰

Multiple Choice

An angle whose measure is exactly 90 degrees is called what?

• Right

• Obtuse

• Full

• Acute

Multiple Choice

Which angle is 300 degrees?

• A

• B

• C

• D

Multiple Choice

Which of these angles is 250 degrees?

• A

• B

• C

• D

Multiple Choice

Which one of these angles is a reflex angle?

• A

• B

• C

• D

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Multiple Choice

True or False? Reflex angles can have an acute or an obtuse angle on the opposite side.

• True

• False

Multiple Choice

A reflex angle is more than _____ degrees, but less than _____ degrees.

(Pick one answer that has both correct numbers for both blanks.)

• 90 / 180

• 90 / 360

• 180 / 270

• 180 / 360