Q. What does it mean for a figure to have Reflectional symmetry?
A shape has reflection symmetry if there exists a line of reflection that carries the shape onto itself. This line of reflection is called a line of symmetry. In other words, if you can reflect a shape across a line and the shape looks like it never moved, it has reflection symmetry.
Q. What triangles have reflection symmetry?
Triangles with reflection symmetry are isosceles. Quadrilaterals with reflection symmetry are kites, (concave) deltoids, rhombi, and isosceles trapezoids. All even-sided polygons have two simple reflective forms, one with lines of reflections through vertices, and one through edges.
Q. What are the three lines of reflection?
A Three lines all the same line Reflection: Two reflections result in the identity; the third results in a simple reflection. D At least two of the three lines intersect. This requires a new kind of isometry, our last. It is called a glide reflection.
Q. How do you identify a reflection?
An object and its reflection have the same shape and size, but the figures face in opposite directions. The objects appear as if they are mirror reflections, with right and left reversed. A reflection can be seen, for example, in water, a mirror, or in a shiny surface.
Q. What does it mean to reflect a line?
A reflection is a transformation representing a flip of a figure. When reflecting a figure in a line or in a point, the image is congruent to the preimage. A reflection maps every point of a figure to an image across a fixed line. The fixed line is called the line of reflection.
Q. How do I make a horizontal line in Word?
Place your cursor where you want to insert the line. Click the Home tab and then click the dropdown arrow for the Borders option in the Paragraph group. From the resulting list, select Horizontal Line.
Q. How do I make a straight vertical line in Word?
To add a vertical line using the shape tool, go to Insert | Shapes and select the Line tool. Place the cursor where you want the line to start, and drag to where you want the other end of the line to be. Holding the Shift key while you drag will ensure that the line is straight.
Q. How do I insert a vertical line between columns in Word?
Adding Vertical Lines Between Columns
- Position the insertion point at the beginning of the material you want to appear in columns.
- Select the Columns option from the Format menu.
- Specify the number of columns desired, as you normally would.
- In the Apply To box, select This Point Forward.
- Click on the Line Between check box.
- Click on OK.
