The length of

is

feet.
To figure this out all we have to do is change

to a decimal, which would be 9.75. Since we are looking for

of our original number, we can just divide it by 4 to find our answer.
In decimal form we get 2.4375, which is equal to

in mixed number form or

in exact form.
Although I think the answer you are looking for is in mixed number form:

Thank you for the question! I hope this helped! Have an amazing day :D