Question

Which formula correctly describes the proportional relationship between the circumference of a circle and the diameter?(1 point)
Responses

π=dC

pi equals Start Fraction d over upper C

A=πr2

upper A equals pi r squared

Cd=π

Start Fraction upper C over d End Fraction equals pi

C=πd

Answer 1

C = πd

(Equivalently C/d = π. The area formulas A = πr² are not the circumference relationship.)