SOLUTION: Please help me solve!! "Tiling Around" How many 1" square tiles are needed to tile the edge of an oval pool with dimensions 12 feet by 22 feet?

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Question 747956: Please help me solve!!
"Tiling Around"
How many 1" square tiles are needed to tile the edge of an oval pool with dimensions 12 feet by 22 feet?

Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
We begin by converting the dimensions to inches
12 feet = 12*12 " = 144"
22 feet =22*12 " = 364"
the total needed is their product: 364*144 = 52416

we need 52416 tiles for a rectangular pool with these dimensions
but for an oval (elliptical) pool
%0D%0AA=pi%2A%28l%2F2%29%28w%2F2%29=pi%2A%28+364%2A144%29%2F4=41167.4%0D%0A
so use 41168 tiles

:)