*MENU: home page*

unit of measure: the base unit | the supplementary unit | the derived unit

*geometry: the area of a flat figure | the area of a solid | the volume of the solid*

A ** trapezium** is a quadrilateral (polygon with four sides), two sides of which are parallel, and the other two are non-parallel

Trapezium is a particular case of convex quadrilateral, having two opposite sides parallel and the other two are non-parallel. Parallel sides of a trapezium are called bases. The distance between those two bases is called trapeziumâ€™s height.

The ** scalene trapezium ** has those two non-parallel sides of different lengths and none of them form a right angle with the base.

The ** isosceles trapezium ** has those two sides are parallel and the other two are congruent; presents the property that the diagonals are congruent

The ** right trapezium** has the one of the non-parallel sides is perpendicular on those two bases.

The ** area of a trapezium **, is equal to the product of one half of the sum (parallel sides) and its height.

where:

a, b — the bases of trapezium;

h — the height of trapezium.

*For separation of number integers and decimals, use the symbol â€“ point [.]*

context information: contemporary and archaic unit of measurement of area