Answer:
20 Km per hour.
I am deeply sorry for the late answer
but the answer is The answer is
r ≈ 6
Step-by-step explanation:
The answer is r ≈ 6
A ≈ 113.04 cubic in.
this means that
d ≈ 12
and
C ≈ 37.69
Therefore
Hope this helped.