aatikah0608
Answered

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How many square tiles with sides of 30 cm are needed to cover a floor with an area of 36m²?​

Sagot :

rspill6

Answer:

400 tiles

Step-by-step explanation:

Calculate the area of each tile, in m^2:

30 cm = 0.30 m

(0.30 m)^2 = 9.0 x 10^-2 m^2

Divide this into the total area:

(36m^2)/(9.0 x 10^-2 m^2)= 400 tiles

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Another approach is to note that 6m^2 could be envisioned as a square with sides of 6 m.  Calculate the tiles needed to stretch along one side:

6 m = 600 cm

600 cm/30 cm  = 20 tiles

It takes 20 tiles to cover one direction

It would also take 20 tiles for the other direction, so a mosaic of 20 by 20 tiles would cover the 36 m^2.

20 x 20 = 400 tiles

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