In rectangle ABCD, the adjacent sides are 12: 5, and its diagonal is 26cm. What is the smaller side of the rectangle?

Let the smaller side of the straight line be 5x, then the larger side is 12x.
144x ^ 2 + 25x ^ 2 = 676
169x ^ 2 = 676
x ^ 2 = 4
x = 2
So the smaller side of the rectangle is 5 * 2 = 10cm



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