Answer:
(B) (C) and (D)
Step-by-step explanation:
An instrument for measuring angles, typically in the form of a flat semicircle marked with degrees along the curved edge is known as Protractor.
The protractor measures angles up to 180°, thus option A is incorrect that is the protractor measures angles more than 90°.
In order to construct any angle using the protractor, the vertex of the angle must be at 0° mark, thus option B is correct.
Option C is correct because a ray is a line that has one defined endpoint is called a ray and extends endlessly in one direction and that point must point at 0°.
Also, The protractor measures angles that open from left or from the right, thus option D is correct.
