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2 Draw a vertical line through the center and check for line symmetry. The vertical line through the center is a line of symmetry dividing the triangle into two equal halves that are mirror images of each other. Notice that it can be a fold line. 3 Draw a horizontal line through the marked center and check for line symmetry.
While the diagonal of a rectangle is not a line of symmetry, the rectangle does have a vertical and a horizontal line of symmetry, as seen above. The parallelogram, however, has NO lines of symmetry. Even if we try to be clever and draw the line parallel to a set of sides, the folding does not coincide with the other side.
A point of symmetry is a point that represents a "center" of sorts for the figure. For any line that you draw through the point of symmetry, if this line crosses the figure on one side of the point, the line will also cross the figure on the other side of the point, and at exactly the same distance from the point. For instance, a figure-eight ...
May 31, 2024 · Uppercase letters like C, D, H, I, N, O, X, and Z also have point symmetry. If you draw a line from the middle of C, D, H, I, O, or X, both the upper and lower parts will be the same length. So, these letters have both point and line symmetry. Point Vs Reflection Symmetry. The key differences between point symmetry and reflection symmetry are:
Furthermore, we can express the line of symmetry to be the line x=0 as this is the equation of the vertical line for all points when x=0. For more information on equations of straight line graphs, see the lesson equation of a line. A straight line also has a line of symmetry. Take the straight line y=x:
For instance, the two black points to the right have three different symmetries if placed on a plane, namely the identity symmetry, rotation by 180 degree about point p, and reflection about the orange line. If the space in which the points lie is a line however (so now a symmetry is an isometry of the line which preserves the two points), then ...
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Here I have folded a rectangle one way, and it didn't work. So this is not a Line of Symmetry. But when I try it this way, it does work (the folded part sits perfectly on top, all edges matching): So this is a Line of Symmetry. Triangles. A Triangle can have 3, or 1 or no lines of symmetry:
