protractor
3
3.4
- noun
- /prəˈtræktər/
:
transportador
- A freely swinging plumb line is suspended from the center of the protractor.
- using a protractor
- ruler and protractor
Rulers, protractors, all of the stuff that you need to write clean lines.
- Rulers, protractors, all of the stuff that you need to write clean lines.
- Can you navigate dismounted cross country on foot at night with nothing more than a map, a compass and a protractor?
- Because in in high school geometry, all we did was play around with, you know, protractors and compasses and do constructions.
- I, I use a lot of materials and actually a protractor.
- Einstein can slap rulers and protractors on space-time.
Examples
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Using a protractor, I measured the angle to be exactly 60 degrees.
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- Mom, Murray needs a compass and protractor for school.
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Do you mind if I keep that protractor?
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Students can use a ruler and protractor to get an estimate.
Academic text (2011) -
Using the protractor, the angle of degree seems to be 35.
Academic text (2011) -
So one of the things she struggles with is using a protractor and the compass.
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Look at the picture of the sextant to help you place the string and the protractor correctly.
Academic text (1994) -
Three worksheets, instructions, ruler, protractor, calculator.
Academic text (2011) -
We've measured that with our protractor and ruler, with our plotter.
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The number of degrees they read on the protractor when they were aiming at the North Star (Polaris) was their latitude.
Academic text (1994)
Synonyms
A hand tool with two arms joined at one end to measure or mark angled lines
A tool that measures angles in joints or crystals
A tool used to measure directions or angles when mapping land
A metal tool with a ruler and handle for checking right angles in wood or metal
How Precise
- Specialized
7
4.1
- Specialized
1
6.7
29
1.0
9
3.2
3
3.4
Surface Forms
Morphology
Etymology
Protractor comes from the Latin parts pro- 'forward' and tract 'draw', the same root you see in tractor. So a protractor is a tool for 'drawing' and 'measuring' how far one line turns from another, which is why we use it to measure angles.