The solution of the problem:
1. Let’s calculate the area of the given rectangle in the problem.
9 * 5 = 45 square centimeters.
2. Let’s calculate what is equal to the area of a rectangle, whose area is three times less.
45/3 = 15 square centimeters.
3. One of the sides of the rectangle, whose area is 3 times less, should also be 3 times less.
Let’s answer the question of the problem.
4. Let’s calculate the sides of the rectangle.
One side = 5 cm. Other side 9/3 = 3 centimeters.
Answer: One side of the rectangle is 5 centimeters, the other 3 centimeters.
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