For this case we have that by definition, the circumference of a circle is given by:

Where:
d: Is the diameter of the circumference
According to the data we have to:

Substituting:

Rounding out we have that the diameter is: 80
Answer:
Option B
have a plan and using some good tools like anki ,or xmind to make your study more effective.
Answer:
3/2
Step-by-step explanation:
that is it. if u do ur measure correctly