A protractor has two scales running in opposite directions. Use the one that reads 0 on the ray the angle starts from. When neither ray sits on 0, read both and subtract.
One ray on the right-hand 0, the other through 130 on the outer scale
The ray on the right starts at 0 on the outer scale, so read the outer scale.
The other ray crosses it at 130.
The answer is 130∘, obtuse.
Where students go wrong
Reading the wrong scale. An angle that is plainly bigger than a right angle cannot be 50 degrees; if the reading and the look disagree, the other scale is the right one.
Also called protractor, reading a protractor, measure the angle, using a protractor or classifying angles.
What you can put on this worksheet
Read an angle off a protractor
Use the protractor to find m∠ABC.→ 80∘
Read it, then classify it
Find m∠ABC and classify the angle.→ 80∘, acute
Questions about these worksheets
Yes. Every measuring angles with a protractor sheet is free to print and free to download as a PDF. There is no account to make, no email to hand over and no limit on how many you take.
Yes. The answer key prints on a second page, and you can choose whether it shows each question beside its answer or just the answers in a list.
Yes. Print straight from the page, or download the PDF and print that. The sheet is laid out for paper rather than squeezed off a screen, so there is room to work under each question, and the answer key comes out on its own page.
Pre-Algebra is usually taken around 7th or 8th grade, though schools vary and plenty of students meet it earlier or later. Pick the difficulty rather than the grade: the easy level suits a first lesson on it, the hard level suits review before a test.
Yes, as many as you like. The questions are built fresh each time rather than picked from a fixed set of files, so pressing Generate gives a new sheet. That is what you want for a second class, a retake, or two students sitting next to each other.
That is the closest comparison, and Kuta Software is good software. It is also paid software you install on a computer. These worksheets run in a browser tab for free, with no account and nothing to install. Like Kuta, the measuring angles with a protractor questions are generated when you ask for them rather than pulled from a fixed set of files, so two classes never get the same sheet, and the answer key comes with it.
Yes. There are three levels, and you can tick more than one for a sheet that mixes them, in which case the questions come out easiest first. The harder levels are not just larger numbers: they ask for something the easy ones do not.
You pick from 2: read an angle off a protractor and read it, then classify it. Tick as many as you want and set how many of each, or let it spread them evenly.
Reading the wrong scale. An angle that is plainly bigger than a right angle cannot be 50 degrees; if the reading and the look disagree, the other scale is the right one.