Question

which angle is vertical to ∠cgd?

Explanation:

Step1: Recall vertical - angle definition

Vertical angles are formed when two lines intersect. They are opposite each other and have equal measures.

Step2: Identify intersecting - lines and vertical angles

The lines intersecting at point G. The angle vertical to ∠CGD is ∠BGE because they are opposite each other at the intersection of the two lines.

Answer:

∠BGE