68.3 square miles.
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The address is 1400 Defense Pentagon, Washington, DC 20301-1400
about $7.50
I was quoted $1795 but the final quote was $1450 for a plain bath install. This was in Washington, DC.
* Claim: The Surface Area of a right circular cone is equal to πrs + πr2, where r is the radius of the cone and s is the slant height equal to Proof: The πr2 refers to the area of the base of the cone, which is a circle of radius r. The rest of the formula can be derived as follows. Cut n slices from the vertex of the cone to points evenly spread along its base. Using a large enough value for n causes these slices to yield a number of triangles, each with a width dC and a height s, which is the slant height. The number of triangles multiplied by dC yields C = 2πr, the circumference of the circle. Integrate the area of each triangle, with respect to its base, dC, to obtain the lateral surface area of the cone, A.Thus, the total surface area of the cone is equal to
DC stands for Diamond Cut.