The formula used to calculate circle circumference is:
C = π · ø
Enter the diameter of a circle. The diameter of a circle is the length of a straight line drawn between two points on a circle where the line also passes through the centre of a circle, or any two points on the circle as long as they are exactly 180 degrees apart
This is the total length of the edge around the circle with the specified diameter, if it was straightened out.
Look at the graph and you can see that 1 week later the plant grew 2 inches. if you look at the other choices it is false because it didn't corresponding to the graph.
