Assuming a circle with a diameter of one half inch,
A = 2Ï€r
so the area in square inches would be half of pi or about 1.57 in2.
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0.500 inches is half an inch.
215.3 square feet for this room.
17.25 * 12.01467 = 207.25 square feet.
An eighth of and inch is half of a quarter of an inch!
there are 1\24 of a foot in a half an inchthere are 1\2 of an inch in a half an inch