Circumference & Area of Circles Quick Check

Question

3 of 53 of 5 Items
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

Cd=π
Start Fraction upper C over d End Fraction equals pi

A=πr2
upper A equals pi r squared

C=πd
upper C equals Start Fraction pi over d End Fraction
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Answer 1

C=πd