### Examples

- Q: Do the diagonals of a square (quadrilateral on graph) bisect each other? Types of Quadrilateral. Some types are also included in the definition of other types!. —
*“Square Quadrilateral”*, - Formulas for finding the area, perimeter, etc. of a quadrilateral. —
*“Math Forum: Ask Dr. Math FAQ: Quadrilateral Formulas”*, - 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- - Quadrilateral definition, having four sides. See more. A complete quadrilateral consists of four lines and their six points of intersection. —
*“Quadrilateral | Define Quadrilateral at ”*, - 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”*, - Quadrilaterals. A quadrilateral is a closed plane figure bounded by four line segments. For example, the figure ABCD shown here is a quadrilateral. A line segment drawn from one vertex of a quadrilateral to the opposite vertex is called a diagonal of the quadrilateral. —
*“Quadrilaterals”*, .au - 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”*, - 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”*, - 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”*, - There are special types of quadrilateral: Some types are also included in the definition A quadrilateral is a polygon. In fact it is a 4-sided polygon, just like a triangle is a. —
*“Quadrilaterals - Square, Rectangle, Rhombus, Trapezoid”*, - 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. —
*“Math Education: Quadrilaterals Index, Page 1 of 4. Level”*, - 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”*, - A Patient's Guide to Quadrilateral Space Syndrome Introduction Quadrilateral space syndrome (QSS) happens when the axillary nerve is compressed, or injured in the back of the shoulder. Sometimes the symptoms are caused by the compression. —
*“Quadrilateral Space Syndrome | ”*, - 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 | ”*, - A quadrilateral, sometimes also known as a tetragon or quadrangle ( If the points do not lie in a plane, the quadrilateral is called a skew quadrilateral. —
*“Quadrilateral -- from Wolfram MathWorld”*, - A quadrilateral derives directly from a Quadrangle by the regrouping of the tops in two pairs. For each pair, the two tops are known as opposite and the segment which joined them (with dimensions of the quadrangle), is not regarded any more a side, but as a diagonal of the quadrilateral. —
*“Quadrilateral - SpeedyLook Encyclopedia”*, - 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”*, - 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”*, - 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”*, - 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”*, - A quadrilateral is a polygon that has exactly four sides. Some examples of quadrilaterals: Discussions of 2-D shapes sometimes refer only to the boundary (the line segments that form the edges of the figure) or to the interior as well. —
*“Quadrilateral - Thinkmath”*, - (Click to enlarge) quadrilateral convex quadrilateral non-convex quadrilateral (Academy Artworks) quadrilateral n. —
*“quadrilateral: Definition from ”*,