A button has a diameter of 0.80 𝑖𝑛𝑐ℎ𝑒𝑠.

What is the exact area of the button in terms of pi (𝜋)?

A=πr2
(3 points)
Responses

A. 0.16π in2
A. 0.16π in2

B. 0.40π in2
B. 0.40π in2

C. 0.64π in2

1 answer

C. 0.64π in2

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