Do you know what is an angle in geometry? Not only in geometry in entire mathematics an angle meaning and definition is the same.
What we observe among students is they can able to say types of angles like what is right angle? What is acute angle? And so on but if we ask what is an angle? Then they are in a position to answer that question. So first students should know what is an angle?
What is the definition of an angle?
The union of two rays with common initial point is called an angle. The second definition of an angle is “the amount of rotation of terminal side with respect to fixed side is called an angle”.
So if you are asked to define what is an angle? Then give the above definitions.