Vertically Angles : each of the pairs of opposite angles made by two intersecting lines.
Vertically angles are always equal.
from the given figure the opposite angles are :
[tex]\begin{gathered} 1.\text{ }\angle a\text{ \& }\angle b \\ \text{ They are vertically angles and are equal} \\ m\angle a\text{ =m }\angle b \\ \\ 2.\text{ }\angle c\text{ \&}\angle d \\ \text{ They are vertically angles and so they are equal} \\ m\angle c\text{ = m}\angle d \end{gathered}[/tex]
From the method of vertically angles we have:
Answer:
c) m
e)m
