what instrument do you measure angles
Angle-measuring instruments may be classified into four types according to the measuring method used. The first group includes devices that compare the angle to be measured against a fixed gage, such as an angle gage (for angles 1â to 180Â°), try square (usually for a 90Â° angle), tapered plug gage, or template.
We measure angles using a tool called a protractor. A protractor is half of a circle. A protractor uses units called degrees to measure angles. A protractor can measure angles starting from the left or from the right. It measures from 0 to 180 degrees. 180 degrees is half of the measure of a circle.
An inclinometer or clinometer is an instrument for measuring angles of slope (or tilt), elevation or depression of an object with respect to gravity.