Lines of symmetry in a regular Square A shape may have more than one line of symmetry depending on its angles and the lengths of each side. For example, a rectangle has two lines of symmetry because it can be folded in half both horizontally and vertically to create mirror images. A regular square is […]

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Lines of symmetry in a regular Dodecagon Line of Symmetry A shape may have more than one line of symmetry depending on its angles and the lengths of each side. For example, a rectangle has two lines of symmetry because it can be folded in half both horizontally and vertically to create mirror images. A […]

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Lines of symmetry in an Isosceles Triangle An isosceles triangle has 1 line of symmetry. An isosceles triangle is one that has two sides that are the same length. The triangle has two equal interior sides. Only if a triangle has two equal sides can it be called to be isosceles. Below figure shows lines […]

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Lines of symmetry in a regular Pentagon What is line of symmetry ? The line of symmetry is the imaginary line where we could fold the image and have both halves match exactly. If a given line splits a given figure into two identical halves, we say that the line has a line of symmetry […]

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Lines of symmetry in a regular octagon What is line of symmetry ? If a given line splits a given figure into two identical halves, we say that the line has a line of symmetry or that the figure is symmetrical about the line and line is called a line of symmetry or the axis […]

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Alternate Interior Angles – Definition – Examples – Properties What are alternate interior angles? The term alternate interior angles is often used when two lines are intersected by a third line(transversal). Alternate interior angles are formed when two lines are intersected by a third line. The third line is known as the transversal line. Alternate […]

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Concave Polygons: Definition – Examples & Properties   All polygons is either convex or concave. A polygon will be convex or concave, it depends on the measure of their angles. What is a Concave Polygon? A concave polygon have at least four sides, and concave polygon is just opposite of a convex polygon. If the measures […]

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 Theorem : In a parallelogram, opposite angles are equal.  Given: A parallelogram ABCD,  opposite sides of parallelogram are                         side AB and side DC                         side AD and side BC. To prove: Opposite angles of parallelogram are equal. […]

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