Question

I don’t know how to tell wether the angles are vertical angles, a linear pair, or neither on number 12-19.

Answer 1

First we need to know what are vertical angles and a linear pair

vertical angles: The angles opposite each other when two lines cross. They are always equal, they share the same vertex.

linear pair: Two angles form a linear pair if they are supplementary (180°) and adjacent.

12. <1 and <2 linear pair

13. <1 and <3 vertical angles

14. <1 and <4 linear pair

15. <1 and <5 neither

16. <1 and <6 neither

17. <1 and <7 neither

18. <1 and <8 neither

19. <2 and <4 vertical angles