Question 62

The floor of a square hall is tiled completely with forty nine square shaped tiles. If the side of each tile measures 2 m, what was the perimeter of the hall ? (in m)

Solution

Area of square shaped tile = $$2 \times 2 = 4 m^2$$

No. of tiles used = 49

=> Area of floor = $$49 \times 4 = 196 m^2$$

Let side of floor = $$x$$ m

=> $$x^2 = 196$$

=> $$x = \sqrt{196} = 14$$ m

$$\therefore$$ Perimeter of hall = $$4 \times 14 = 56$$ m

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