11. A flooring tile has a shape of a parallelogram whose base is 28cm and the
corresponding height is 20cm. How many such tiles are required to cover a floor
of an area 2800m.
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Answer:
Given : base= 28 cm
Height= 20 cm
Area of floor= 2800 m²= 2800×100×100cm²
[1m²= 10000cm²]
Area of the Parallelogram = base x height
= 28 x 10 = 280 cm²
Area of 1 tile = 280 cm²
[Tiles are in the shape of a parallelogram]
Number of tiles required= Area of the Floor/Area of the Tiles
= 2800 x 100 x 100/280 = 2800000/28
=100000 tiles
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