Quadrilateral - Wikipedia
Simple quadrilaterals. Any quadrilateral that is not self-intersecting is a simple quadrilateral. Convex quadrilaterals
Quadrilateral -- from Wolfram MathWorld
where is the determinant and is a two-dimensional cross product.. There are a number of beautiful formulas for the area of a planar convex quadrilateral in terms of the side and diagonal lengths, including
Quadrilateral Shapes - Geometry: Math Games
Learn about quadrilaterals the fun way in this Quadrilateral Shape Shoot Geometry Math Game.
Quadrilateral | Definition of Quadrilateral by Merriam-Webster
The new 2,700-square-foot space feels like a geometric funhouse — quadrilaterals of wood overhead, an enveloping half-circle over the open kitchen, and the hypotenuse of the bar slanting through the lounge. — tan vinh, The Seattle Times, "Art of the Table lounge aims high — too high?," 27 Apr. 2017
Quadrilaterals - Square, Rectangle, Rhombus, Trapezoid ...
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.
Quadrilaterals, diagonal of the quadrilateral, types of quadrilaterals, parallelogram, rectangle, square, rhombus, trapezium, kite, irregular quadrilateral, angle sum of a quadrilateral and applying properties of quadrilaterals to solve problems.
Quadrilateral - Math Exercises
A host of activities and lessons that explore the world of Quadrilaterals! Classify quadrilaterals, Find the unknown angle,...
Diamond Quadrilateral - Wikipedia
The Diamond Quadrilateral is a project of the Indian railways to establish a high speed rail network in India.The Diamond Quadrilateral will connect the four mega cities in India, Delhi, Mumbai, Kolkata and Chennai, similar to the Golden Quadrilateral expressway system. India today is planning to start semi-high speed trains on nine corridors and has ambition to run bullet trains in future.
Interactive Quadrilaterals - Math Is Fun
Angles. The four angles of a quadrilateral add to 360°, but here they sometimes may not, simply because we only show them to the nearest 1°.
If You Were a Quadrilateral (Math Fun): Molly Blaisdell ...
If You Were a Quadrilateral (Math Fun) [Molly Blaisdell, Francesca Carabelli] on Amazon.com. *FREE* shipping on qualifying offers. What could you do if you were a quadrilateral? You could have four straight sides. You could be a checkerboard, a kite