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DegreesBy Emily Lopez
Note: “degrees" can also mean
temperature, but here we are talking about
angles.
The Degree Symbol
We use a little circle ° following the number to
mean degrees.
Ex: 90° : 90 degrees
One Degree
Circle
A Full Circle is 360°
Half a circle is 180°
Quarter of a circle is 90°
Measuring Degrees
We often measure degrees using a protractor:
The normal protractor measures 0° to 180°
How Do You Measure Degrees?
1. Place the center point of your protractor at the point where the
sides of the angle meet (the vertex).
2. Place the protractor so that one of the lines of the angle you want to measure reads zero (that's actually
0°).
3. Read the number off the protractor where the
second side of the angle meets,
and that’s it!
Angle G is 60°
Reading A Protractor
Protractors usually have two sets of numbers going in opposite directions.
(Those Numbers Are Degrees)
When in doubt think, “Should this angle be bigger or smaller than
90°?"
(Hint: Think of your angles: acute ,obtuse ,& right)
THE END