The circumference of a circle is 40 ft, what is it's radius, diameter and area in terms of pie?
in Geometry Answers by Level 1 User (480 points)

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r=20/¶ ft (radius)

diameter=2r=2(20/¶)=40/¶ ft

area=¶ r^2=¶(20/¶)^2=400/¶ sq.ft
by Level 7 User (29.3k points)

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