Correct option is B
A
Vernier bevel protractor is a precision instrument used to measure angles accurately. It is widely utilized in engineering and machining operations to determine angles on flat or curved surfaces, as well as to verify the angle of machined parts. Equipped with a vernier scale, it enhances the precision of angle measurement.
It is a used to measure the angles. The accuracy of vernier bevel protractor is (1/12)°or 6 minute. It can measure acute as well as obtuse angles.
