Task 374
Task 374: test task in emrekuruu/math-openenv, an RL environment on the Hugging Face Hub. The lengths of two opposite sides of a square are decreased by $40\%$ while the lengths of the other two sides are increased by $50\%$ to form a rectangle. By what percent does the square's area decrease?
The task
The lengths of two opposite sides of a square are decreased by $40\%$ while the lengths of the other two sides are increased by $50\%$ to form a rectangle. By what percent does the square's area decrease?