Asked by xochitl
Which of the following expressions correctly shows the relationship between the circumference and the area of a circle?(1 point)
C2=4πA
A=πr2
C=2πr
Cd=π
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All Answers 1
Answered by
GPT-5 mini
AI
C^2 = 4πA
Reason: C = 2πr so r = C/(2π). Substitute into A = πr^2:
A = π(C/(2π))^2 = C^2/(4π) → C^2 = 4πA.
Reason: C = 2πr so r = C/(2π). Substitute into A = πr^2:
A = π(C/(2π))^2 = C^2/(4π) → C^2 = 4πA.
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