Parallelogram vs. Trapezoid

Parallelogramnoun

(geometry) A convex quadrilateral in which each pair of opposite edges are parallel and of equal length.

Parallelogramnoun

either of two rectangular areas (respectively the large parallelogram and the small parallelogram) abutting the goal line in front of the goal. (Since 1986 officially named the large rectangle and small rectangle, though the older names are still occasionally used.)

Parallelogramnoun

A right-lined quadrilateral figure, whose opposite sides are parallel, and consequently equal; - sometimes restricted in popular usage to a rectangle, or quadrilateral figure which is longer than it is broad, and with right angles.

Parallelogramnoun

a quadrilateral whose opposite sides are both parallel and equal in length

Parallelogram

In Euclidean geometry, a parallelogram is a simple (non-self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

Trapezoidnoun

A (convex) quadrilateral with two (non-adjacent) parallel sides.

Trapezoidnoun

A convex quadrilateral with no sides parallel and no equal sides.

Trapezoidnoun

(anatomy) The trapezoid bone of the wrist.

Trapezoidnoun

A plane four-sided figure, having two sides parallel to each other.

Trapezoidnoun

A bone of the carpus at the base of the second metacarpal, or index finger.

Trapezoidadjective

Having the form of a trapezoid; trapezoidal; as, the trapezoid ligament which connects the coracoid process and the clavicle.

Trapezoidadjective

Of or pertaining to the trapezoid ligament; as, the trapezoid line.

Trapezoidnoun

a quadrilateral with two parallel sides

Trapezoidnoun

the wrist bone between the trapezium and the capitate bones

Trapezoid

In Euclidean geometry, a convex quadrilateral with at least one pair of parallel sides is referred to as a trapezium () in English outside North America, but as a trapezoid () in American and Canadian English. The parallel sides are called the bases of the trapezoid and the other two sides are called the legs or the lateral sides (if they are not parallel; otherwise there are two pairs of bases).