How to lay the floor of 5m long and 3M wide with two triangular floors with right angle sides of 30cm and 10cm respectively? How to lay the floor of 3M wide and 5m long?

As shown in the figure: ∵ 30cm = 0.3m, 10cm = 0.1M, ∵ at least the number of triangular floor blocks required is: 15 (0.3 × 0.1) = 500 (blocks), a: at least 500 triangular floor blocks are required

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