Answer:
The basic idea behind copying a given angle is to use your compass to sort of measure how wide the angle is open; then you create another angle with the same amount of opening.
Step-by-step explanation: these are the steps
Using a straightedge, draw a reference line, if one is not provided.
Place a dot (starting point) on the reference line.
Place the point of the compass on the vertex of the given angle, ∠ABC (vertex at point B).
Stretch the compass to any length that will stay "on" the angle