Question

In the figure, given below name:​
(i) Three pairs of adjacent angles

Answer 1

(a) $\angle AOB$ and $\angle BOC$
where $OB$ is common arm, $O$ is common vertex and $OA$ and $OC$ are the other arms on opposite sides of common arm.

(b) $\angle AOB$ and $\angle AOD$
where $OA$ is common arm, $O$ is common vertex and $OB$ and $OD$ are other arms on opposite sides of common arm.

(c) $\angle AOD$ and $\angle DOC$
where $OD$ is common arm, $O$ is common vertex and $OA$ and $OC$ are other arms on opposite sides of common arm.

Hence, required pairs of adjacent angles are $\angle AOB$ and $\angle BOC$, $\angle AOB$ and $\angle AOD$, and $\angle AOD$ and $\angle DOC$.