Answer:
Step-by-step explanation:
Lets begin with 5x. The opposite sides of a rectangle are parallel, so 5x = 50 and x = 10
Then do the same for y. 3y = 27 so y = 9
2n + n = 90
3n = 90
n = 30
The corner = 90º
m = 90 - 10
m = 80º
Hopefully this helps.
