dictionary.reference.com/browse/trapezoid

en.wikipedia.org/wiki/Trapezoid

In Euclidean geometry, a convex quadrilateral with at least one pair of parallel sides is referred ... The former definition would make such concepts as the trapezoidal approximation to a definite ... Four lengths a, c, b, d can constitute the consecutive sides of a non-parallelogram trapezoid with a and b parallel only when.

www.mathsisfun.com/definitions/trapezoid.html

A 4-sided flat shape with straight sides that has a pair of opposite sides parallel. ( Called a trapezium in the UK. Both US and UK definitions of trapezium and ...

www.mathsisfun.com/geometry/trapezoid.html

A trapezoid is a 4-sided flat shape with straight sides that has a pair of ... The Area of Polygon by Drawing tool is helpful when you can draw your Trapezoid.

www.dictionary.com/browse/trapezoid

Trapezoid definition, a quadrilateral plane figure having two parallel and two ... The second trapezoid is composed of pieces which can be placed in the ...

www.vocabulary.com/dictionary/trapezoid

In geometry a trapezoid is a four-sided figure with two sides that are parallel. ... The word trapezoid comes from the Greek trapeza meaning "table" and -oeides ... or a life-long learner, Vocabulary.com can put you on the path to systematic ...

www.merriam-webster.com/dictionary/trapezoid

Define trapezoid: a four-sided shape that has two sides that are parallel and two sides that are not parallel.

thinkmath.edc.org/resource/shape-trapezoid

Meaning. A trapezoid is a quadrilateral with at least one pair of parallel sides. No other features matter. (In English-speaking countries outside of North America, ...

www.mathopenref.com/trapezoid.html

Trapezoid definition and properties. ... (but see definition notes below) ... vertices, you can calculate various properties of it, including the altitude and median.