It is known that the angle ABC = 74 degrees, and the ray BD is its bisector. Calculate the DBC angle.

It is known that BD is a bisector. The bisector is a ray emanating from the apex of an angle and dividing this angle in half. Accordingly, the BD beam bisected the ABC angle. Then we can assert that the unknown angle DBC is equal to half of the angle ABC, that is, in order to find the angle DBC, we need to divide the value of the angle ABC by 2. Also in the problem statement it is said that the angle ABC is 74 °. So, we can say that in order to find out the value of the DBC angle, you need to divide 74 ° by 2.
74: 2 = 37 °
The DBC angle is 37 °.