How to Find Measure of a Angle

••• protractor image by timur1970 from

Measuring an angle can require simple mathematical equations or more complex geometry. To measure an angle, you need a protractor. In the measurement, you will be dealing with the vertex of the angle, which is where the two lines meet to form the angle. Angles are measured in degrees.

    Place the center of the protractor on the vertex of the angle. The center of the protractor is usually designated by a plus sign.

    Align the protractor so one line is parallel with the bottom of the protractor. That will align one line of the angle with the plus sign on the protractor.

    Find the measurement at which the other line of the angle bisects the half-moon part of the protractor. That number is the degree of the angle.

Related Articles

How to Use a Protractor
How to Use a Protractor to Measure a Triangle
How to Calculate the Arc Length, Central Angle, and...
How To Calculate an Angle From Two Sides
How to Measure an Angle Using a Protractor
How to Calculate Sides of a Triangle
How to Split a Triangle Into Fourths
How to Find an Angle in Trigonometry
Simple Ways to Figure Out Angles
How to Find the Sin, Cos and Tan of an Angle
How to Find Degrees in Polygons
How to Build a Goniometer
How to Find the Radius of an Arc
Instructions for Using a General Tools 17 Square Head...
How to Calculate Angles Without a Protractor
How to Convert an Angle to a Decimal
How To: Degree to Radian Conversion
How to Read Protractors
How to Find the Distance Between Two Points on a Circle
How to Calculate the Diameter of a Circle From a Linear...

Dont Go!

We Have More Great Sciencing Articles!