Question

foundations of euclidean geometry which pair of angles shares ray af as a common side? ∠baf and ∠fad ∠eaf and ∠cae ∠daf and ∠dab ∠baf and ∠ead

Explanation:

Step1: Identify angle components

Each angle has vertex A; rays are first and third letters.

Step2: Check ∠BAF rays

∠BAF: rays BA, AF.

Step3: Check ∠FAD rays

∠FAD: rays FA, AD (FA=AF).

Step4: Confirm common side

AF is common to ∠BAF and ∠FAD.

Answer:

∠BAF and ∠FAD