insider.si.edu: Geometric Model by A. Harry Wheeler, Two Parallelograms Transformable into Quadrilaterals, Portion, Plane Dissection
Geometric Model by A. Harry Wheeler, Two Parallelograms Transformable into Quadrilaterals, Portion, Plane Dissection
There are six basic types of quadrilaterals: 1) rectangle, 2) square, 3) parallelogram, 4) rhombus, 5) trapezoid, and 6) kite. Each one of them and their basic properties are given below:
Quadrilaterals are two-dimensional four-sided polygons on a plane. Quadrilaterals have the following properties: the interior angles add up to 360°. The following diagram shows the properties of some quadrilaterals: square, rectangle, parallelogram, trapezoid, rhombus, kite.
Quadrilaterals are widely studied in geometry. They are often categorized further based on their angles and sides. A parallelogram is a quadrilateral with two pairs of parallel sides. The opposite angles and sides of a parallelogram are congruent. A rectangle is a quadrilateral with four right angles.
A rectangle has two pairs of equal sides. It has four right angles (90°). The opposite sides are parallel. The diagonals bisect each other. A parallelogram has two pairs of equal sides. It has two ...
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Quadrilaterals are important not only in geometry, but for understanding complex geometric shapes and for their wide practical applications. There are several common types of quadrilaterals.