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  • Classification of Quadrilaterals. Quadrilateral is a geometric shape that consists of four points (vertices) sequentially joined by straight line segments (sides). We find the etymology of the word in S. Schwartzman's The Words of Mathematics. — “Classification of Quadrilaterals”, cut-the-
  • Try this Drag the orange dots on each vertex to reshape the quadrilateral. Quadrangle ("four angles") is another name for a quadrilateral. — “Quadrilateral (also: tetragon, quadrangle) definition - Math”,
  • A quadrilateral is a closed plane figure bounded by four line segments. A line segment drawn from one vertex of a quadrilateral to the opposite vertex is called a diagonal of the quadrilateral. — “Quadrilaterals”, .au
  • Quadrilateral - Meaning and definition quadrilateral. 1. A plane figure having four sides, and consequently four angles; a quadrangular figure; any figure formed by four lines. — “Quadrilateral - Encyclopedia”,
  • Square (regular quadrilateral): four sides have equal length, and each angle is a right angle. Some people define categories exclusively, so that a rectangle is a quadrilateral with four right angles that is not a square. — “Quadrilateral - Definition”,
  • Definition of quadrilateral in the Dictionary. Meaning of quadrilateral. What does quadrilateral mean? Proper usage of the word quadrilateral. Information about quadrilateral in the dictionary, synonyms and. — “What does quadrilateral mean? definition and meaning (Free”,
  • Math Education: Geometry, Quadrilaterals Index, Page 1 of 4. Level: High School, SAT Prep, College geometry. Elearning, Online tutoring. Parallelogram, Rectangle, Rhombus, Square, Trapezoid, Equilic, Cyclic. Tangential or Circumscribed Quadrilateral: Diagonals, Inradii Theorem. — “Math Education: Quadrilaterals Index, Page 1 of 4. Level”,
  • Definition of quadrilateral from Webster's New World College Dictionary. Meaning of quadrilateral. Pronunciation of quadrilateral. Definition of the word quadrilateral. Origin of the word quadrilateral. — “quadrilateral - Definition of quadrilateral at ”,
  • Oh Yes! when two sides cross over, you call it a "Complex" or "Self-Intersecting" quadrilateral like these: A quadrilateral is a polygon. In fact it is a 4-sided polygon, just like a triangle is a. — “Quadrilaterals - Square, Rectangle, Rhombus, Trapezoid”,
  • Formulas for finding the area, perimeter, etc. of a quadrilateral. — “Math Forum: Ask Dr. Math FAQ: Quadrilateral Formulas”,
  • Definition of quadrilateral in the Online Dictionary. Meaning of quadrilateral. Pronunciation of quadrilateral. Translations of quadrilateral. quadrilateral synonyms, quadrilateral antonyms. Information about quadrilateral in the free online. — “quadrilateral - definition of quadrilateral by the Free”,
  • A quadrilateral is a four-sided polygon. Parallelogram: A quadrilateral with two pairs of opposite sides parallel. Rhombus: A parallelogram with four congruent sides. — “Quadrilateral - Geometry - Math Dictionary”,
  • General Quadrilateral( Definition) Four faces and four vertices of polygon is a quadrilateral. Tetragon and quadrangle is also known as quadrilateral. The interior amount of directions is 180⁰ in the triangle; the interior amount of direction is always the same 360⁰ in the quadrilaterals. — “General Quadrilateral | ”,
  • (Click to enlarge) quadrilateral convex quadrilateral non-convex quadrilateral (Academy Artworks) quadrilateral n. — “quadrilateral: Definition from ”,
  • Any quadrilateral can be divided into two triangles by drawing a line segment that connects two opposite corners (vertices) See also: Computers & Math Computer Modeling Every parallelogram is a polygon, and more specifically a quadrilateral. — “Rectangle Quadrilateral”,
  • Free Math Printable Worksheets: 1) Classify Quadrilateral as parallelogram (a classic activity: have the students construct a quadrilateral and its midpoints, then create an inscribed quadrilateral. Then ask the students to measure the angles,. — “Parallelograms. Properties, Shapes, Sides, Diagonals and Angles”,
  • A quadrilateral is a polygon that has exactly four sides. In addition to circumscribing circles around a quadrilateral (drawing circles around a quadrilateral, touching each vertex), it is sometimes possible. — “Quadrilateral - Thinkmath”,
  • In Euclidean plane geometry, a quadrilateral is a polygon with four sides (or 'edges') and four vertices or corners. The interior angles of a simple quadrilateral add up to 360 degrees of arc. — “Quadrilateral - Wikipedia, the free encyclopedia”,
  • The perimeter of a quadrilateral is the sum of the lengths of its sides. The area of a quadrilateral can be found by dividing it into triangles and summing the areas of the triangles. — “Quadrilateral”,
  • A quadrilateral is a four-sided polygon with four angles. There are many kinds of quadrilaterals. The five most common types are the parallelogram, the rectangle, the square, the trapezoid, and the rhombus. Move your mouse cursor over the figures at the right to learn more. — “Polygons - Quadrilaterals - First Glance”,
  • Quadrilateral definition, having four sides. See more. A complete quadrilateral consists of four lines and their six points of intersection. — “Quadrilateral | Define Quadrilateral at ”,


  • Tricksta Rida: Line Rider #1 Well, quite frankly, absolutely, positively, quadrilateral-ly, in a word, or someting..... IT MOWS!