Answer:
it is 12.345 to be exact
Step-by-step explanation:
so first I did 4x 2.75 and got 11 ft.
Then I took 2.75 and divided by 2 which would get the half of the centimeter. That equaled up to 1.345 yo be exact.
then I added 11 and 1.345 together to get 12.345