Answer:
were is the pic!
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Zeroes mean the amount of times the graph has touched the x-axis
Answer:

Step-by-step explanation:
The ratio of a circumference to its diameter is equal to an irrational number, called pi, roughly equal to 3.14, denoted by symbol

Therefore, knowing the diameter d, the circumference is equal to d*π