Question

Which equation can be used to show the relationship between the circumference C and a diameter D of a circle

Answer 1

The diameter is the distance from one side of a circle to the other, if you cross through the center. The circumference is the distance around the circle. The circumference is equal to two time pi time the radius (C=2*pi*r)

Answer 2

d/C = 1/π

Explanation:

d/C = 1/π can be used to show the relationship between the circumference, C, and the diameter, d, of a circle.

1/π = d/C shows the same relationship as C=π⋅d.