Your answer is 22 because line segment CD has 22 units which is parallel to AD
If the 2s keep going forever and never end, then the whole thing
is the same as 2/9 .
Every mixed number is bigger than ' 1 ', but 2/9 or 0.2....... is less than ' 1 ',
so there's nothing you can do to it to make it a mixed number.
The inverse function of cos is arccos (cos^-1(x)). So, the only one that has arccos(x/6) is option c. That's your answer!
X= 10.5 I used proportions in my head so 10.5 is the correct answer