Question

Write down the pair of adjacent angles shown in the following figure:

Answer 1

Two angles are called adjacent angles, if they have a common vertex and a common arm but no common interior points.

Hence, the following are adjacent angles:

1. ∠AOC, ∠AOD
2. ∠AOD, ∠BOD
3. ∠BOD, ∠BOC
4. ∠BOC, ∠AOC