Diagonals of Polygon’s In geometry, a line segment joining two vertices of a polygon or polyhedron, when those vertices are not adjacent is known as Diagonal.  Diagonals of Polygon’s A polygon’s diagonal’s are line segments, that joining from one corner to another corner. Formula for number of diagonals = n(n-3)/2 where n is number of sides or […]

Read More →

Quadrilateral – Definition – Properties There are kinds of quadrilaterals, based on the sides and angles.  1. Parallelogram 2  Rectangle 3. Square 4. Rhombus 5. Trapezium 6. kite 1.                       Parallelogram A Parallelogram is a quadrilateral, whose both pairs of opposite sides are parallel and equal in length. In above […]

Read More →

Quadrilaterals – Definition – Properties The word “quadrilateral” has two Latin words quadri, a variant of four and latus meaning is “side”.                    What is a quadrilateral A quadrilateral is a polygon, with four edges or sides and four vertex or corners. Just like as a triangle is 3 sides polygon, […]

Read More →

 2D Shapes – Names and Properties Definition and Properties  2-dimensional shapes have 2 dimensions length and width.  Rectangle  A rectangle is a 2-dimensional 4 sided polygon. A rectangle have 4 sides, 4 angles and 4 vertices. The total of 4 angles is 360 degree. Square A square is a 2-dimensional 4 sided polygon. A square have 4 sides, 4 angles and 4 vertices. The total of […]

Read More →

 Trapezium – Definition – Properties Altitude – Midsegment –  Angles – Formula  Definition: A trapezium is a flat closed quadrilateral with 4 straight sides with one pair of parallel sides. The sides can be vertical, horizontal or slanting.A trapezium is also known as a trapezoid. The parallel sides is called the base and the non […]

Read More →