Find adjacent sides of a rectangle if it is known that the area is 250 cm2, and one of the sides is 2.5 times larger than the other.

univerkov | March 16, 2021 | education

Let x be the smaller side of the rectangle;

Then 2.5x is the big side;

Let’s compose the area equation:

x * 2.5x = 250;

2.5x² = 250;

x² = 250 / 2.5;

x² = 100;

x = 10 cm – the smaller side of the rectangle;

2.5x = 2.5 * 10 = 25 cm – large side.

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