Video: Identifying Types of Geometric Transformation

What kind of transformation is shown in the figure?

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Video Transcript

What kind of transformation is shown in the figure?

First, let’s remind ourselves what kind of transformations there are. We have three main types of transformations. We have a rotation, which is a turn about a point; a reflection, which is a flip over a line; and a translation, which is a slide.

From these three types, rotation, reflection, and translation, which of these most closely explains what’s happening in our figure? In our figure, we have a line. And our original shape has been flipped over that line. The best description for the transformation happening here is a reflection. Our figure, our trapezoid, is being reflected over the blue line.

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