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Brewer's: Diophantine Analysis

Finding commensurate values of squares, cubes, triangles etc. or the sum of a given number of squares which is itself a square; or a certain number of squares etc. which are in…

Nepal flag

The Question: Why is Nepal's flag shaped the way it is? The Answer: The national flag of Nepal is indeed unique, shaped like two right…

Completing the Square

Completing the Square Algebra Quadratic Equations and Inequalities Solving Quadratics by Factoring Completing the Square The Quadratic Formula All Signs Point to the Discriminant Solving One-…

Plants & Animals

Dinosaur Fossils (By US State!) List of Dinosaurs... By US State! Frequently Asked Questions: Animals Frequently Asked Questions: Animals Frequently Asked Questions: Animals 75-Million-Year-Old…

Brewer's: Scheltrum

An army drawn up in a circle instead of in a square. Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894SchemeScheherazade A B C D E F G H I J K L M N O P Q R…

Geometry: When Is a Parallelogram a Square?

When Is a Parallelogram a Square?GeometryProofs About QuadrilateralsWhen Is a Quadrilateral a Parallelogram?When Is a Parallelogram a Rectangle?When Is a Parallelogram a Rhombus?When Is a…

Brewer's: Quadrille

(2 syl., French) means a small square; a dance in which the persons place themselves in a square. Introduced into England in 1813 by the Duke of Devonshire. (Latin, quadrum, a square.) Le…

Algebra: The Quadratic Formula

The Quadratic Formula Algebra Quadratic Equations and Inequalities Solving Quadratics by Factoring Completing the Square The Quadratic Formula All Signs Point to the Discriminant Solving One-…

Geometry: Symmetry

SymmetryGeometryTransformationsIsometriesDilationsSymmetry Just what is symmetry? Symmetry is one of those things that you can recognize but cannot put into words. Many words or phrases have a…

Geometry: Calculating Areas

Calculating AreasGeometryPutting Quadrilaterals in the ForefrontProperties of All QuadrilateralsProperties of TrapezoidsLet's All Fly a Kite!Properties of ParallelogramsThe Most Popular…