How do you write 11 /2 as a percentage?

Beta is 60 degrees, and the angle of A should be 30 degrees.

Step-by-step explanation:

Its a right triangle, so it equals 180 degrees, there's a perpendicular angle at 'C' so its 90 degrees, B and its angle of 'Beta' 60 degrees, and angle 'A' can be 30 degrees. if in need of more explanation please look into complimentary and supplementary angles should give you a good idea.