Question

which angles are adjacent angles? ∠hif and ∠jik ∠efd and ∠hif ∠efd and ∠efi ∠gfd and ∠hik

Explanation:

Step1: Recall adjacent - angle definition

Adjacent angles share a common vertex and a common side.

Step2: Analyze each option

• For $\angle HIF$ and $\angle JIK$, they share a common vertex $I$ but no common - side between them.
• For $\angle EFD$ and $\angle HIF$, they have no common vertex and no common side.
• For $\angle EFD$ and $\angle EFI$, they share the common vertex $F$ and the common side $\overrightarrow{EF}$.
• For $\angle GFD$ and $\angle HIK$, they have no common vertex and no common side.

Answer:

$\angle EFD$ and $\angle EFI$