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Anestetic [448]
3 years ago
15

What is the exact area of a circle having diameter 4in

Mathematics
1 answer:
BartSMP [9]3 years ago
4 0
The diameter of a circle is calculated by using the formula D=r2pi so plug in the known values to find r=2/pi. Next plug r into the area of a circle formula(A=r^2pi) do so and get 4/pi
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