Answer: 70
Step-by-step explanation:
Looking at line p, we can form an equation to find the missing angle that would make the line equal to 180* (all straight lines, unless stated otherwise, should be assumed they are a 180* angle). We can use the equation below:
[tex]180 = 80 + 30 + x\\x = 180 - (80 + 30)\\x= 70[/tex]
If lines n and m are parallel, the angles should be equal when looking at an intersecting line.
Hope this helps!
