mimi834
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Help!

What is the constant of proportionality between any circle's circumference and diameter?
A. r
B.πr
C.π
D.2π​

Respuesta :

Answer:

C.π

Step-by-step explanation:

The formula for circumference is given by

C = pi * diameter

C = pi *d

Divide  each side by d

C/d = pi*d/d

C/d = pi

The constant of proportionality is pi

They are directly proportional