how can we move the triangle so we get in the right space so we can get it right?

If you click and hold on the protractor, you can drag it wherever you want. You will need to drag the protractor so that the dot in the middle of the straight side is exactly over the "vertex" of the angle (this is the point where the two lines of the angle meet). Once you have the protractor in the right place, you can unclick. Then just click and drag the green arrow to rotate the protractor around. You will want to rotate the protractor until the part that says "0" lines up with one side of the angle. Now you can tell what the measure of the angle is by seeing what number the other side of the angle passes through on the protractor. Hope this helps!

What job we need to use this?

Engineer, Programmer, most if not all of the trades, and probably a few more.

that was a lot easier after just looking at it

I know but when you do it it is not easy

sometimes it is easy to guess the angle measure so why use protractors

sometimes we need to use protractors to find the exact answer of degrees.

Main content

Geometry (all content)

Course: Geometry (all content) > Unit 2

Lesson 2: Measuring angles

Measuring angles review

Google Classroom

Review measuring angles with a protractor, then try some practice problems.

Measuring angles

Angles are measured in degrees. We can use a protractor to measure how many degrees an angle is.

Example:

Measure the following angle in degrees:

First, we line up the dot on the center of the protractor with the vertex of the angle.

Next, we rotate the protractor so that the 0, degrees mark lines up with one side of the angle.

Finally, we read the protractor to see where the other side lines up.

The angle is 70, degrees.

Want to learn more about measuring angles? Check out this video.

Practice

Problem 1

Current

Measure the angle in degrees.

degrees

Want to try more problems like this? Check out this exercise.

Want to join the conversation?

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matayah
Posted 4 years ago. Direct link to matayah's post “how can we move the trian...”
how can we move the triangle so we get in the right space so we can get it right?
Button navigates to signup pageComment on matayah's post “how can we move the trian...”
(41 votes)
Answer
- Polina Vitić
  Posted 4 years ago. Direct link to Polina Vitić's post “If you click and hold on ...”
  If you click and hold on the protractor, you can drag it wherever you want. You will need to drag the protractor so that the dot in the middle of the straight side is exactly over the "vertex" of the angle (this is the point where the two lines of the angle meet).
  
  Once you have the protractor in the right place, you can unclick. Then just click and drag the green arrow to rotate the protractor around. You will want to rotate the protractor until the part that says "0" lines up with one side of the angle.
  
  Now you can tell what the measure of the angle is by seeing what number the other side of the angle passes through on the protractor.
  
  Hope this helps!
  Comment on Polina Vitić's post “If you click and hold on ...”
  (68 votes)
jk parker
Posted 5 years ago. Direct link to jk parker's post “OMG I figured it out! lol...”
OMG I figured it out! lol Question, is it possible to kind of eye the measurement? Where you dont use any tools you just look at the angle?
Button navigates to signup pageComment on jk parker's post “OMG I figured it out! lol...”
(10 votes)
Answer
- MasterGamer
  Posted a year ago. Direct link to MasterGamer's post “I think you can.”
  I think you can.
  Button navigates to signup page
  (4 votes)
🌹Nicolle🥀
Posted 3 years ago. Direct link to 🌹Nicolle🥀's post “What job we need to use t...”
What job we need to use this?
Button navigates to signup pageComment on 🌹Nicolle🥀's post “What job we need to use t...”
(15 votes)
Answer
- Geminix
  Posted 6 months ago. Direct link to Geminix's post “Engineer, Programmer, mos...”
  Engineer, Programmer, most if not all of the trades, and probably a few more.
  Button navigates to signup page
  (3 votes)
Aarush33
Posted 5 years ago. Direct link to Aarush33's post “sometimes it is easy to g...”
sometimes it is easy to guess the angle measure so why use protractors
Button navigates to signup pageComment on Aarush33's post “sometimes it is easy to g...”
(5 votes)
Answer
- Angel
  Posted 8 months ago. Direct link to Angel's post “sometimes we need to use ...”
  sometimes we need to use protractors to find the exact answer of degrees.
  Comment on Angel's post “sometimes we need to use ...”
  (13 votes)
hanswi2326
Posted 3 years ago. Direct link to hanswi2326's post “that was a lot easier aft...”
that was a lot easier after just looking at it
Button navigates to signup pageButton navigates to signup page
(12 votes)
Answer
- SheilaEsther
  Posted 3 years ago. Direct link to SheilaEsther's post “I know but when you do it...”
  I know but when you do it it is not easy
  Comment on SheilaEsther's post “I know but when you do it...”
  (2 votes)
Paola Carrillo
Posted 4 months ago. Direct link to Paola Carrillo's post “This is a little hard but...”
This is a little hard but I think I could do it by working the problem slowly and taking my time
Button navigates to signup pageButton navigates to signup page
(11 votes)
Answer
Emilia
Posted 3 years ago. Direct link to Emilia's post “why is it very hard to li...”
why is it very hard to line up the lines
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(8 votes)
Answer
- athit_v
  Posted 7 months ago. Direct link to athit_v's post “bruh”
  bruh
  Comment on athit_v's post “bruh”
  (3 votes)
Kael Viehmann
Posted 3 years ago. Direct link to Kael Viehmann's post “The questions are very ea...”
The questions are very easy and simple. Could you do a version for older kids?
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(11 votes)
Answer
- Maddox stoneking
  Posted 6 months ago. Direct link to Maddox stoneking's post “no!no!NO!NO!”
  no!no!NO!NO!
  Button navigates to signup page
  (0 votes)
πceratops VIVIAN
Posted 5 months ago. Direct link to πceratops VIVIAN's post “I Want to try more proble...”
I Want to try more problems like this
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(9 votes)
Answer
294691
Posted 4 months ago. Direct link to 294691's post “how do i do it in a easie...”
how do i do it in a easier way then that way
Button navigates to signup pageComment on 294691's post “how do i do it in a easie...”
(6 votes)
Answer