A protractor.
If you absolutely needed to measure an angle to find out its degree measure, you would use a protractor.
put the protractor on the vertex and look up at the degree's and look belowacute angle =has a measure between 0 degree's and 90 degree'sright angle =has a measure of 90 degree'sobtuse angle = has a measure between 90 degree's and 180 degree'sstraight angle = has a measure of 180 degree'sthat's how you use a protractor to measure angles.
83 degree angle
a 60-degree angle
an acute angle measure from 1 degree to 89 degrees
the unit used to measure angle is degree. It is also measured in radians.
180-31=149 149 degree angle
The supplement of an 80 degree angle is an 100 degree angle.
An angle whose degree measure is between 0 and 90 is an acute angle. An angle whose degree measure is between 90 and 180 is an obtuse angle. These are basic properties of geometry.
An obtuse angle
The degree measure of five fourths of a right angle is 112.5 degrees
the unit used to measure angle is degree. It is also measured in radians.