somaia95 somaia95
  • 25-08-2020
  • Mathematics
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A floor 5 m by 20 m is covered by square tiles of side 20 cm. How many tiles are needed

Respuesta :

ricchad
ricchad ricchad
  • 25-08-2020

Answer:

number of tiles needed = 2500 pieces

Step-by-step explanation:

Floor area = 5m x 20m = 100 m²

area of 1 square tile = 20cm x 20cm = 400 cm² ---- convert to m²

400 cm² x [tex]\frac{1 m^{2} }{100^2 cm^2}[/tex] = 0.04 m²

To get the number of tiles required to cover the floor area 5x20 = 100 m²

just divide it by the area of tile.

so Number of tile req'd = 100 / 0.04 = 2500

therefore,

the number of tiles needed = 2500 pieces

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