One side of the rectangle is twice the size of the other, and their perimeter is 30 cm. What is the smaller side of the rectangle?

One side of the rectangle is 2 times larger than the other.
The perimeter of the figure is 30 centimeters.

Let the second side of the quadrangle be x centimeters.
Then the length of the first side will be 2 centimeters.
Let’s make the equation:
x + x + 2x + 2x = 30;
6x = 30;
x = 30: 6;
x = 5.
One of the sides is 5 centimeters long.
Find the length of the second side:
5 * 2 = 10 centimeters.
Answer: The smaller side of the rectangle is 5 centimeters long.

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