Question
In Fig.name each linear pair and each pair of vertically opposite angles:
✓
Answer
Linear pairs:
$\angle 1, \angle 2 ; \angle 2, \angle 3 ; \angle 3, \angle 4 ; \angle 4, \angle 1 ; \angle 5, \angle 6 ; \angle 6, \angle 7 ; \angle 7, \angle 8 ; \angle 8, \angle 5 ; \angle 9, \angle 10$; $\angle 10, \angle 11 ; \angle 11, \angle 12 ; \angle 12, \angle 9$
Pairs of vertically opposite angles:
$\angle 1, \angle 3 ; \angle 2, \angle 4 ; \angle 5, \angle 7 ; \angle 6, \angle 8 ; \angle 9, \angle 11 ; \angle 10, \angle 12$
$\angle 1, \angle 2 ; \angle 2, \angle 3 ; \angle 3, \angle 4 ; \angle 4, \angle 1 ; \angle 5, \angle 6 ; \angle 6, \angle 7 ; \angle 7, \angle 8 ; \angle 8, \angle 5 ; \angle 9, \angle 10$; $\angle 10, \angle 11 ; \angle 11, \angle 12 ; \angle 12, \angle 9$
Pairs of vertically opposite angles:
$\angle 1, \angle 3 ; \angle 2, \angle 4 ; \angle 5, \angle 7 ; \angle 6, \angle 8 ; \angle 9, \angle 11 ; \angle 10, \angle 12$
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