The rectangular ABCD with an area of 1.6m2 is made of 10 identical rectangular floor tiles (as shown in the figure). What is the perimeter of the rectangular ABCD?

Suppose the width of each rectangular tile is XM, then the length is 4xm. According to the meaning of the title, 4x2 = 1.6 × 110, and the solution is x = ± 0.2, 2 × (4x + X + 2 × 4x) = 26 & nbsp; X = 5.2 (m). Answer: the circumference of rectangular ABCD is 5.2m

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