In Fig. 15, write down: (i) each linear pair (ii) each pair of vertically opposite angles.

a pair of vertically opposite angles are_____

Pair of vertically opposite angles are ______

In Fig.19,name each linear pair and each pair of vertically opposite angles:

In Fig.19, name each linear pair and each pair of vertically opposite angles:

In identity: Two pairs of vertically opposite angles.

In the figure identify. The pairs of vertically opposite angles.

Name two pairs of vertically opposite angles in the figure.

Indicate which pair of angle are vertically opposite angles.

Name two pairs of vertically opposite angle in the figure.

In Fig (5.18) identify:(i) Five pairs of adjacent angles. (ii) Three linear pairs.(iii) Two pairs of vertically opposite angles