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    • Isosceles trapezium

      Image courtesy of geometriaparalelogramo.blogspot.com

      geometriaparalelogramo.blogspot.com

      • An isosceles trapezium has two parallel sides and two non-parallel sides of equal length it has only one line of symmetry along the line segment joining the midpoints of the two parallel sides. A trapezium is a four-sided, two-dimensional shape having two of its sides parallel to each other.
  1. Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.

  2. A regular hexagon has 6 lines of symmetry, a decagon has 10 lines of symmetry, and an icosagon has 20 lines of symmetry. But what about a circle? A circle can be rotated around its centre and the shape will remain identical as the radius is the same for every point.

  3. You can find if a shape has a Line of Symmetry by folding it. When the folded part sits perfectly on top (all edges matching), then the fold line is a Line of Symmetry. Here I have folded a rectangle one way, and it didn't work .

    • Introduction
    • What Is Line Is symmetry?
    • Types of Line Symmetry
    • 1 Line Symmetry
    • 2 Lines Symmetry
    • 3 Lines Symmetry
    • 4 Lines Symmetry
    • 5 Lines Symmetry
    • 6 Lines Symmetry
    • Infinite Lines of Symmetry

    We have a number of figures in mathematics that are so evenly balanced n different sizes and shapes. Let us observe the following figures – We can observe that for each figure the one half on one side of the dotted line is exactly identical to the one half on the other side of the dotted line. In other words, we can say that the two halves are mirr...

    We say that a given line has a line of symmetry or it is symmetrical about a lineif the line divides a given figure into two identical halves. The line is called the axis of symmetry or line of symmetry.

    There are two types of line symmetries according to which we can classify the symmetries in different geometrical figures. These types are – 1. Horizontal Lines of Symmetry 2. Vertical Line of Symmetry Let us discuss them in detail

    A geometrical figure is said to have one line of symmetry if it is symmetrical about one line of axis only. Let us consider some examples.

    A geometrical figure is said to have two lines of symmetry if it is symmetrical about two lines of axis only. Let us consider some examples.

    A geometrical figure is said to have three lines of symmetry if it is symmetrical about three lines of axis only. Let us consider some examples.

    A geometrical figure is said to have four lines of symmetry if it is symmetrical about four lines of axis only. Let us consider some examples.

    A geometrical figure is said to have five lines of symmetry if it is symmetrical about five lines of axis only. Let us consider some examples.

    A geometrical figure is said of having six lines of symmetry if it is symmetrical about six lines of axis only. Let us consider some examples.

    A geometrical figure is said of having infinite lines of symmetry if it is symmetrical about infinite lines of the axis. Let us consider some examples.

  4. Many – Lines Symmetry. The line which divides the shape into two equal parts from top to bottom is called the vertical line of symmetry. Some objects have a horizontal line of symmetry which divides the shape into equal parts from left to right side.

  5. Then one side lies exactly on top of the other, and gives the shape on the right. Imagine a mirror placed along the central dotted line. The reflection in the mirror gives the other half of the shape. This type of symmetry is called line symmetry. Any isosceles triangle has line symmetry.

  6. Any shape that can be folded down a line to get two matching halves is said to have a line symmetry. The number of lines of symmetry for a shape can be determined by using a ruler to visualize when the shape or object can be divided equally into 2 equal pieces that are a reflection of each other.

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