define geometric dilation in simple terms

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Geometric dilation is a transformation that changes the size of a figure without changing its shape but involves stretching or shrinking it uniformly in all directions from a fixed center point. It occurs when every point of the figure is multiplied by a constant scale factor. The scale factor determines how much the figure is enlarged or reduced.
define symmetry in simple terms
Symmetry is a concept that refers to balance and the correspondence of certain properties or characteristics on opposite sides or parts of an object, shape, or pattern. In simple terms, if something is symmetric, it means that if you were to split it into two equal halves, those halves would be mirror images of each other. In other words, both sides of the object or shape look the same or very similar. This balance can be found in various aspects, such as shape, color, design, or arrangement of elements. Symmetry is often visually pleasing and can be observed in nature, architecture, art, and many other elements of our everyday surroundings.