# SOLUTION: a rectangular floor 12 units long and 8 units wide is to be covered w/ triangular tiles w/ side 3 units, 4 units and 5 units how many tiles are neede?

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 Geometry: Area and Surface Area Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Surface-area Question 637645: a rectangular floor 12 units long and 8 units wide is to be covered w/ triangular tiles w/ side 3 units, 4 units and 5 units how many tiles are neede? Answer by god2012(108)   (Show Source): You can put this solution on YOUR website!the sides of the triangle are 3,4 and 5 units That is , it is a right angled triangle (pythagorian triplets) Area of triangle = 1/2 * 4 * 3 = 6 sq. units Area of rectangle = L * B = 12 * 8 = 96 Sq. units Total number of tiles required = total area / total area of triangle per tile = 96/6 = 16 tiles Total tiles needed to cover the floor = 16