Answer:
m<y= 30°
Step-by-step explanation:
Because they are vertically opposite angles.
Vertically opposite angles are always equal.
About vertically opposite angles:
Please see the attached picture.
There,
<AOC and <BOD are formed by the intersected line segments and they lie to the opposite side of the common vertex. They are called vertically opposite angles. <AOD and <BOC are another pairs of vertically opposite angles. Vertically opposite angles are always equal.
Hope this helps ...
Good luck on your assignment...
