Answer: approximately 25.13 centimeters.
Step-by-step explanation: If the diameter of a circle is 8cm, then the radius is half of that, which is 4cm. We can use this information to calculate the area and circumference of the circle as follows:
Area of circle = π * r^2
= π * 4^2
= π * 16
= 16π
≈ 50.27 cm^2 (rounded to two decimal places)
Circumference of circle = 2π * r
= 2π * 4
= 8π
≈ 25.13 cm (rounded to two decimal places)
Therefore, the area of the circle is approximately 50.27 square centimeters and the circumference is approximately 25.13 centimeters.
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