Answer:
21.3576443
Step-by-step explanation:
Trig rules state that csc = hypotenuse / opposite.
The opposite side to the given angle measures 11 units. The given angle measures 31 degrees. We need to find the length of the hypotenuse.
Therefore, we write,
x/11 = csc(31)
x = csc(31) * 11
x = 21.3576443
Hope this helps!