How get the least count of bevel protactor?

The least count of a bevel protractor can be determined by examining its smallest graduated division. Typically, this is found by measuring the smallest angle that can be read directly from the scale, which is often 1 degree or smaller, depending on the specific design of the protractor. To find the least count, divide the value of the smallest division by the number of divisions on the main scale. For example, if the smallest division is 1 degree and there are 10 divisions, the least count would be 0.1 degrees.