A trapezoid has four sides. It is a simple, convex quadrilateral with at least one pair of parallel sides. In British English, it is typically called a trapezium.
Know MoreFormerly, the word trapezoid in British English meant a quadrilateral with no parallel sides, or what is often called an irregular quadrilateral.
Agreement as to the classification of trapezoids is not universal. Some regard only quadrilaterals with one single pair of parallel sides as trapezoids. Others regard the parallelogram, with two pairs of parallel sides, as a special type of trapezoid. This definition includes rectangles, rhombuses and squares as trapezoids as well because they are all special types of parallelogram.
Learn more about ShapesAn n-gon is a polygon with "n" sides, where "n" is a placeholder for any number. The letter "n" is commonly used alongside other letters in mathematics and science as variables to represent unknown numbers.
Full Answer >Based on the geometric definition of a polygon, a circle has no sides or infinite sides. According to the definition, a circle cannot have sides because it isn't made up of line segments that are connected by shared endpoints that form interior angles.
Full Answer >A trapezoid is a closed two-dimensional geometric figure having four linear sides, two of which are parallel. The parallel segments are referred to as bases while the other two sides are called legs. The altitude of the trapezoid pertains to the distance that forms a 90-degree angle between the bases.
Full Answer >There are three types of trapezoid. There is the right trapezoid, which has two right angles, isosceles trapezoid, which has two of its non-parallel sides equal in length and the scalene trapezoid, which does not have equal sides or angles.
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