word problem, help! more details below?
June 4, 2009
A mosaic tile floor is designed in the shape of a trapezoid 30 ft wide at the base & 15 feet wide @ the top. The tiles, 12 inches by 12 inches, are to be placed so that each sucessive row contains one less tile than the row below. How many tiles will be required?
Posted in Mosaic Floor Tiles
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June 4th, 2009 at 5:42 am
360
Since the tiles are 12" x 12" (1 square foot), the shortest row will contain 15 tiles, and the longest row will contain 30 tiles. There are 16 rows in all.
Thus 15 + 16 + 17…etc….. + 28 + 29 + 30 = 360 tiles.
It's a mosaic, so the sides won't be perfect.
June 4th, 2009 at 5:42 am
344 can i have best answer plz im only lvl 1 and i need to ge 2 lvl 2 thx