The number 3.14 is a rounded value of the mathematical quantity π. If you replace 3.14 with π, what is the exact formula for the circumference in terms of the diameter, d, and in terms of the radius, r?

Respuesta :

C=pi(r)(2)
C=pi(d)
Those are the exact formulas for the circumference.

Hope this helps!
Formula in terms of diameter = πd
Formula in terms of radius = 2πr