Examples of parallelograms include rectangles, squares and rhombuses. Algebra.com defines a parallelogram as a quadrilateral, or polygon with four sides that are straight, with opposite sides that run parallel to each ot... More »

No, a hexagon is not a parallelogram. A parallelogram is a four-sided closed plane figure with both pairs of opposite sides parallel to each other. A hexagon is a six-sided figure. More »

The formula for the area of a parallelogram is base times height. A parallelogram is a four-sided figure in which the opposite sides are parallel to one another and have the same length and the sum of all internal angles... More »

There are many different types of quadrilaterals: squares, rectangles, rhombuses, trapezoids, parallelograms and kites. A quadrilateral defined as a closed shape (polygon) that consists of exactly four straight lines. More »

Some examples of plane figures are triangles, rectangles, squares, rhombuses, parallelograms, circles, ovals, hearts, pentagons and hexagons. A plane figure is a flat figure with closed lines that stays in a single plane... More »

There are four variations of quadrilaterals that have two pairs of parallel sides: rhombuses, parallelograms, squares and rectangles. They are each differentiated by their relative side lengths and angles. More »

The basic four types of quadrilaterals are squares, rectangles, parallelograms and trapezoids. A quadrilateral is any shape that has four sides and four vertices. The interior angles of a quadrilateral add up to 360 degr... More »