# Crossword911.com crossword help

### Examples

• 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”,
• 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”,
• 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”,
• 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 | ”,