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A rigid motion that does not preserve orientation is a reflection. In a reflection, points are flipped over a line (in two dimensions) or a plane (in three dimensions), resulting in a change in the order of points and their orientation. For example, if you reflect a shape across a line, the left and right sides of the shape will switch places, reversing its orientation. This contrasts with motions like translations and rotations, which maintain the original orientation of the figure.
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Which rigid transformation does NOT result in a reversed orientation of the original image?
A rigid transformation that does not result in a reversed orientation of the original image is a translation or a rotation. Both transformations preserve the orientation of the figure, meaning that the shape and arrangement of points remain unchanged. In contrast, a reflection is the rigid transformation that reverses the orientation.
Is there rigid motion when you flip a pancake?
Yes, flipping a pancake involves a rigid motion. When you flip it, the pancake rotates around an axis, but its shape, size, and orientation remain unchanged throughout the motion. This means that all points of the pancake maintain their relative positions to one another, characteristic of rigid motion.
What are not rigid motion transformations?
Dilation, shear, and rotation are not rigid motion transformations. Dilation involves changing the size of an object, shear involves stretching or skewing it, and rotation involves rotating it around a fixed point. Unlike rigid motions, these transformations may alter the shape or orientation of an object.
Are dilation rigid motion transformation?
No, dilation is not a rigid motion transformation. Rigid motion transformations, such as translations, rotations, and reflections, preserve distances and angles. In contrast, dilation changes the size of a figure while maintaining its shape, thus altering distances between points. Therefore, while the shape remains similar, the overall dimensions are not preserved.
Does rotation preserve orientation?
no
Do rotations preserve or change the orientation of the figure?
They change the orientation.
Does translation preserve the orientation?
Yes, it does.
What type of transformation is not a rigid motion?
A non-rigid transformation is one that alters the shape or size of a figure, such as dilation or stretching. Unlike rigid motions, which preserve distances and angles (like translations, rotations, and reflections), non-rigid transformations can change the proportions and overall dimensions of an object. For example, scaling a shape to make it larger or smaller is a non-rigid transformation.
Why is translation a rigid motion?
Translation is considered a rigid motion because it involves moving every point of a shape or object the same distance in a specified direction, preserving its size and shape. During translation, there is no rotation or distortion; the relative distances and angles between points remain constant. This characteristic ensures that the object retains its original form and orientation throughout the motion.
Why is a dilation not a basic rigid motion?
A dilation is not a basic rigid motion because it alters the size of a figure while maintaining its shape, rather than preserving distances between points. Rigid motions, such as translations, rotations, and reflections, only change the position or orientation of a figure without affecting its dimensions. In contrast, dilations involve scaling, which can either enlarge or reduce a figure, thus not satisfying the criteria of preserving lengths and angles.
What is rigid motion in geometry?
Movement of a shape can involve flexing - for example, a square frame being flexed into a rhombus. Rigid motion excludes such motion: the shape of the moving object does not change.
Does not describe a rigid motion transformation?
Stretch
