Trapezium
There are two common definitions of the trapezium. The American definition is a Quadrilateral with noParallel sides. The British definition for a trapezium is a Quadrilateral with two sides Parallel. Such a trapezium is equivalent to a Trapezoid and therefore has Area
See also Diamond, Lozenge, Parallelogram, Quadrilateral, Rhomboid, Rhombus,Skew Quadrilateral, Trapezoid
- Euler Polyhedral Formula
- Euler Polynomial
- Euler Polynomial Identity
- Euler Power Conjecture
- Euler Product
- Euler Pseudoprime
- Euler Quartic Conjecture
- Euler's 6n+1 Theorem
- Euler's Addition Theorem
- Euler's Circle
- Euler's Conjecture
- Euler's Criterion
- Euler's Displacement Theorem
- Euler's Distribution Theorem
- Euler's Factorization Method
- Euler's Finite Difference Transformation
- Euler's Graeco-Roman Squares Conjecture
- Euler's Homogeneous Function Theorem
- Euler's Hypergeometric Transformations
- Euler's Idoneal Number
- Euler's Machin-Like Formula
- Euler's Pentagonal Number Theorem
- Euler's Phi Function
- Euler's Polygon Division Problem
- Euler's Quadratic Residue Theorem