Pentagon – Properties In a pentagon the sum of the internal angles is equal to 540°. In a regular pentagon each interior angle measure is 108°, and each exterior angle measure is 72°. A regular pentagon has five axes of symmetry, each one of them passes through a vertex of the pentagon and the middle […]

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Lines of symmetry in a regular Rhombus What is a Rhombus? A rhombus is a quadrilateral whose all the sides are of equal in length, opposite sides are parallel and opposite angles are equal. In other words, a rhombus is a parallelogram with adjacent sides of equal length. What is line of symmetry ? The […]

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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 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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Equation of a Circle when the Center of Circle Coincides with the Origin In this tutorial we will learn, equation of a circle when the center of circle coincides with the origin with examples. Equation of a circle with center at (h, k) and radius equal to r, is (x – h)² + (y – […]

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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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