To measure angels you use a so called Protractor.
Practice lining up and reading a protractor while you measure a set of angles in this fun learning activity. The angles may range from 0° to 180°. The interactive protractor is already lined up with the vertex of each angle but you will have to rotate the protractor into proper position. The margin of error is only 1° and you must report measurement to the nearest whole number.
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they both measure the angle in degrees
each measure of the angle at point h has a measure of
the answer is twice. the angle of rotation is twice the measure
A protractor can be used to measure an angle.
The measure of a right angle is 90 degrees .