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First of all we have to convert the dimensions of roof in inches.

1 feet = 12 inches

12 feet = 144 inches

Area of each tile = 4 x 4 inches2

Area of roof = 144 x 144 inches2

So, Number of tiles = Area of roof/Area of each tile = (144x144)/(4x4) = 1296.

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12y ago
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Q: How many 4inch tiles would you need for 12 ft by 12 ft roof?
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