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 Measure an Inside Diameter
How to Calculate the Arc Length, Central Angle, and...
How to Use a Protractor to Measure a Triangle
How to Find the Number of Sides of a Polygon
How to Find the Area of Triangles & Trapezoids
Characteristics of Aquatic Plants
How to Calculate the Diameter of a Circle From a Linear...
How to Find the Degrees in a Circle
Simple Ways to Figure Out Angles
How to Calculate Angles Without a Protractor
How to Use Bevel Protractors
How to Read Protractors
How To: Degree to Radian Conversion
How to Find the Distance Between Two Points on a Circle
How to Measure an Angle Using a Protractor
How to Convert Radian to Minutes
How to Convert an Angle to a Decimal
How To Calculate an Angle From Two Sides
How to Find the Radius of an Arc
What Are Coterminal Angles?

Dont Go!

We Have More Great Sciencing Articles!