The dimensions of a rectangular balcony are 2m10cm by 90cm. How many square tiles 30×30
| December 21, 2020 | education
The dimensions of a rectangular balcony are 2m10cm by 90cm. How many square tiles 30×30 do you need to lay the floor on the balcony?
Let’s find the floor area on the balcony:
(2m10cm = 210cm)
210 * 90 = 18900 (cm2)
Find the area of 1 tile: 30 * 30 = 900 (cm2)
Find the number of tiles:
18900/900 = 21
Answer: 21
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