a rectangular hall is of length14m and breadth 12m how many square tiles of side10 cm are needed to cover the floor of hall
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area of the rectangular hall=(1400×1200)cm^2=1680000cm^2
area of square tiles=10×10=100cm^2=100cm^2
no. of tiles needed=1680000÷100=16800.
area of square tiles=10×10=100cm^2=100cm^2
no. of tiles needed=1680000÷100=16800.
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