Question

what is an angle that is adjacent to ∠hce?

Explanation:

Step1: Recall adjacent - angle definition

Adjacent angles share a common side and a common vertex and have no interior - points in common.

Step2: Identify adjacent angle to ∠HCE

Looking at the figure, ∠HCF shares the common side $\overrightarrow{HC}$ and the common vertex C with ∠HCE and has no interior - points in common with ∠HCE.

Answer:

∠HCF