I am going to have to go with, C, because the other answers are Invalid.
Answer:
Please do not insert off-site links. This is abuse to the terms of use.
Step-by-step explanation:
Answer: 60 L
Step-by-step explanation:
Given
The measurement of a rectangular vessel is 
If we multiply the given terms then it will give the volume of the rectangular vessel in
.
So, the volume of the rectangular vessel is

Also, we know
i.e. to convert
to L, divide the result by 1000.

Plug 3 in for r it equals 28.26 so its A
Circumference = πD
π*49 = 153.94 (We can leave it as it is because there are two halves to the circle on either side of the training track)
81*2 = 162 (There are two 81 meter lines)
153.94+162 = 315.94m
The length of the training track is 315.94m
Hope this helps! :)