To use a protractor effectively for measuring angles, place the center of the protractor on the vertex of the angle. Align one side of the angle with the 0-degree mark on the protractor. Read the measurement where the other side of the angle intersects the protractor scale.
To use a protractor effectively for measuring angles accurately, place the center of the protractor on the vertex of the angle. Align one side of the angle with the 0-degree mark on the protractor. Read the measurement where the other side of the angle intersects the protractor. Make sure to use the correct scale (either 180 degrees or 360 degrees) based on the type of angle you are measuring.
a protractor
Angles are measured using a protractor
you can use a protractor or the paper test to see if the angle is a right angleDegrees and radians.
It sounds like you are thinking of a protractor. We still use it a lot today, especially in architecture and design. The protractor is a semi-circular measuring instrument used for measuring angles.
you use a protractor.
a protractor
Use a protractor.Use a protractor.Use a protractor.Use a protractor.
You use a protractor to meausure angles in degrees. Or you can draw a semi-circle (my favorite) ;)
a protractor
use a protractor to measure angles
With a protractor. A protactor looks like a semi circle. At the bottom of the the protractor there will be another semi circle but much smaller with a dot in the middle. To learn how to use a protractor or how to measure a circle go to this website http://mathforum.org/library/drmath/view/57664.html It will tell you almost everything on how to measure angles.