# How to Measure an Angle Without a Protractor?

Measuring angles without a protractor is one of the fundamental aspects of geometry. Sine, cosine, and tangent are three concepts that will allow you to calculate an angle based solely on the lengt... Read More »
http://www.ehow.com/how_7364713_measure-angle-protractor.html

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## How to Measure an Angle With a Protractor?

Computer technology can automate many tasks, but the simplicity and ease of a protractor make it a useful tool. You can use a protractor to measure and draw angles. Protractors are commonly made of... Read More »
http://www.ehow.com/how_7341101_measure-angle-protractor.html

## How to Draw an Angle With a Protractor?

If you want to draw an angle that is a precise degree of sharpness, you should use a protractor. Otherwise, the angle will be inaccurate because the human eye is not capable of gauging precise angl... Read More »
http://www.ehow.com/how_8094294_draw-angle-protractor.html

## How to Find an Angle Without a Protractor?

Finding the exact measure of an angle requires the use of a protractor or other mathematical instrument, but you can use formulas from trigonometry to get a very close approximation of the angle. T... Read More »
http://www.ehow.com/how_8288665_angle-protractor.html

## How to Construct a 90 Degree Angle With a Protractor?

A protractor is a useful tool for measuring as well as creating angles. You can use a protractor to create a 90-degree angle, also known as a right angle. Being able to create right angles is usefu... Read More »
http://www.ehow.com/how_8143774_construct-90-degree-angle-protractor.html

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