Area of Regular polygons?
A display case in a jewelry store has a base in the shape of a regular octagon. The length of each side of the base is 10 inches. The owners of the store plan to cover the base in black velvet.
The arie of the base of the display case is 482.8 in^2
the next Q. is find the number of square yards of fabric needed to cover the base. I don't think you only transfer it into yards though, do you?
1 square yard = 1296 square inch
Therefore,
482.8 (square inches) = 0.372530864 square yards
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Filed under Velvet Jewelry Boxes by on Mar 16th, 2010. Comment. 
