SOLUTION: (((how do I find the area of the half-circle that is 3ft wide?)))

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Question 274667: (((how do I find the area of the half-circle that is 3ft wide?)))
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Find the area of the circle, then divide it by 2.
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I assume by "wide" you mean the diameter.
The area of the whole circle is pi%2Ar%5E2
r = d/2 = 1.5 feet
Area = 2.25*pi
Area/2 = 1.125*pi square feet
Area/2 =~ 3.534 sq feet