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Use the formulae for the area and circumference of a circle, replacing the symbol for the radius or the diameter with the known radius or diameter. As a reminder, the radius is 1/2 the diameter.Circumference = pi x diameter

area = pi x radius squared

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6y ago
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6y ago

Area of circle: pi*3.5 squared = 38.486 squared yards rounded to 3 decimal places

Circumference of circle: 7*pi = 21.991 yards rounded to 3 decimal places

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Q: What is the area and the circumference of a circle with diameter 7 yd .?
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