Question

12. 27 and 28 form a linear pair. 13. 22 and 24 are vertical angles. 14. m29= m26 + m28

Answer 1

Linear pair angles are adjacent angles that add up to 180 ° ( form a straight line)

So, by looking at the image:

12. <7 and <8 NO

Because they are not adjacent angles.

13. <2 and <4 are vertical angles . YES

Vertical angles are opposite angles

14. m<9 = m<6+m<8 YES

m<6+m<8+m<9 form a straight line, and the bisctor line makes m<9 = m<6+m<8