Question

Please help why is d a angle

Answer 1

Here is your answer

Both

a) /_D

c) /_ADB

are correct

REASON:

/_ADB represents an angle between AD and BD which is marked in the question.

/_D represents the point where the two lines or rays have a common point, i.e.D

[However writing a single letter to represent an angle is not completely correct. But when there is only one angle represented through the point then writing a single letter is correct

i.e. /_D is correct ]

HOPE IT IS USEFUL