C = 2 × pi × r
C= 2 × pi × 2.5
Your answer is
C = 5 × pi
Answer:
It makes comparing magnitudes easier. It is much easier to estimating numbers easier. you can easily say that 0.0000000009 is smaller than 0.0000001 and even say but how much, and it reduces the amount of time you have to read the number, since instead of having 0s, you have the amount of 0s.
Ik that 9 is one of em
Hope this helps have a nice nite
