The Relationship Between Circumference & Area Quick Check
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Question
Which of the following expressions correctly shows the relationship between the circumference and the area of a circle?(1 point)
Responses
C=2πr
upper C equals 2 pi r
Cd=π
Start Fraction upper C over d End Fraction equals pi
C2=4πA
upper C squared equals 4 pi upper A
A=πr2
C=2πr
If C=12π, what is the area of the circle? (1 point)
Responses
12π
12 pi
24π
24 pi
36π
36 pi
144π