Question

Answer the following questions in relation to the figure in Q.4.

(3) Write the angles that form liner pairs with ∠AOD.

Answer 1

A pair of adjacent angles whose outer arms are opposite rays is called a linear pair of angles.
$\angle AOC$ and $\angle AOD$ form a linear pair. Similarly, $\angle BOD$ and $\angle AOD$ form a linear pair. Thus, we can say that $\angle AOC$ and $\angle BOD$ form a linear pair with $\angle AOD$.