What is a vernier bevel protractor?
A vernier bevel protractor:
What is a '360 degreed protractor'? Is it easier to use than the normal protractor? Which protractor is more useful? Is this kind of protractor specially made for making pie charts?
What is the range of angles in a protractor in degrees ?
What is the maximum angle a protractor can measure at a time?
What is the use of a Vernier calliper?