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Quadrilaterals - Square, Rectangle, Rhombus, Trapezoid, Parallelogram
 
Quadrilaterals Quadrilateral just means "four sides" (quad means four, lateral means side). A quadrilateral has four-sides, it is 2-dimensional (a flat shape), closed (the lines join up), and has straight sides. 
  
Quadrilateral - Wikipedia
 
In geometry a quadrilateral is a four-sided polygon, having four edges (sides) and four corners (vertices). The word is derived from the Latin words quadri, a variant of four, and latus, meaning "side". 
  
Quadrilateral – Definition, Properties, Types, Formulas, Examples
 
What shape is a quadrilateral in geometry – find out its facts, definition and properties along with its types, examples and diagrams 
  
Quadrilaterals – Definition, Types, Properties & Examples
 
Quadrilaterals are among the most fundamental shapes in geometry. Though simple in appearance, they form the basis of countless mathematical ideas and appear constantly in real life, from floor tiles and windows to playing cards and kites. 
  
Quadrilateral, its Sides, Diagonals & Types of Quadrilateral
 
What is a Quadrilateral its diagonals, adjacent sides, opposite sides and different types of quadrilateral? Learn by solved examples, FAQs and MCQs. 
  
Quadrilateral - Math Steps, Definition, Examples & Questions
 
Free quadrilateral step-by-step topic guide, including the definition, properties, step-by-step examples, free practice questions, and more! 
  
Types of Quadrilaterals and Their Properties - GeeksforGeeks
 
A quadrilateral is a polygon with four sides, four vertices, and four angles. There are several types of quadrilaterals, each with its own properties and characteristics. 
  
Understanding What Is Quadrilateral: A Beginner's Guide
 
A quadrilateral is a four-sided polygon with various types like squares and rectangles, each defined by specific angles and side lengths. 
  
Intro to quadrilateral (video) - Khan Academy
 
A quadrilateral is defined as a two-dimensional shape with four sides, four vertices, and four angles. There are two main types: concave and convex. There are also various subcategories of convex quadrilaterals, such as trapezoids, parallelograms, rectangles, rhombi, and squares. Created by Sal Khan. Want to join the conversation? 
  
Quadrilateral (also: tetragon, quadrangle) - math word definition ...
 
Quadrangle ("four angles") is another name for a quadrilateral. However, it is a word often used for an open space where people gather, say on a school or university campus. 
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