When three lilies are arranged in a pattern in which the largest lily is lowest and the next one up is smaller and the next one is even smaller than the second, the designer is using the technique called

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To find out the technique or pattern being used in the arrangement of the three lilies, we need to analyze the information provided. According to the question, the largest lily is placed at the lowest position, followed by a smaller lily, and then an even smaller lily.

Based on this description, the technique being used in this arrangement is called "gradation" or "size progression." Gradation refers to a gradual change or progression in size, often ranging from large to small or vice versa.

In the case of the lilies, the designer is arranging them in a specific order based on their sizes, with each lily getting progressively smaller. This creates a visually pleasing pattern known as gradation, where the gradual change in size brings a sense of harmony and balance to the arrangement.

Next time you come across a similar pattern or design, look for changes in size, whether it's in objects, shapes, colors, or any other visual element. This could indicate the use of the gradation technique.