Answer:
68
Step-by-step explanation:
you have to add to 180 and 68+112=180
To find the perpendicular line, we need to find the negative inverse slope.
y = -1/2x - 2
This line also passes through the point since both have the y intercept / value of -2.
Hope this helps!
3-----4
3-----4
3-----4
Total (Left): 9
Total (Right): 12
-------------------
Total (Left) + Total (Right) = 9 + 12 = 21
It would be: k+3 = 10
subtracting 3 from both sides,
k+3-3 = 10-3
k=7