Final answer:
Adjacent angles are °AHD and °AHB because they share a common side and vertex without overlapping.
Step-by-step explanation:
To determine which two angles are adjacent, we must consider which angles share a common side and vertex without overlapping. Given the choices: °AHD and °AHB, °DHB and °BHF, and °AHD and °BHF, we can assert that °AHD and °AHB are adjacent angles because they share a common side, AH, and vertex, H, while not overlapping each other. The other pairs do not share a common side or vertex.