How is the formula for the circumference of a circle derived? Drag and drop the correct word into each box to complete the explanation.

diameter

circumference

diameter

Step-by-step explanation:

First, find the length of the diameter (d) and the length of the circumference of the circle (c).

Next, divide the length of the circumference c by the length of the diameter d and set up an equation

where the ratio equals to (the definition of )

Then, solve the equation for the circumference c:

Finally, substitute 2 times the radius for the diameter

1 mph

step-by-step explanation:

if the question is asking how much does she drive per mile then,

13 / 13 = 1 mph