what is a parallelogram definition
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- parallelogram noun [C]. › a ​flat ​shape that has four ​sides. The two sets of ​opposite ​sides are ​parallel and of ​equal ​length to each other. (Definition of parallelogram from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press).
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- In a square, rectangle, or rhombus, the opposite side lines are parallel. A quadrilateral with the opposite side lines parallel is known as a parallelogram. If only one pair of opposite sides is required to be parallel, the shape is a trapezoid.
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Parallelogram 1 Rhomboid – A quadrilateral whose opposite sides are parallel and adjacent sides are unequal, and whose angles are not right angles. 2  Rectangle – A parallelogram with four angles of equal size. 3  Rhombus – A parallelogram with four sides of equal length.
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- Cf. Rhombus, Rhumb.] 1. (Geom.) An equilateral parallelogram, or quadrilateral figure whose sides are equal and the opposite sides parallel. The angles may be unequal, two being obtuse and two acute, as in the cut, or the angles may be equal, in which case it is usually called a square.
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- cartogram (plural cartograms) A map used to indicate geographically-bound statistical information, typically region-by-region values of a given variable, for example by using different shadings for different ranges of values.
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- Notice how the opposite sides remain parallel. A parallelogram is a quadrilateral with opposite sides parallel. But there are various tests that can be applied to see if something is a parallelogram. It is the parent of some other quadrilaterals, which are obtained by adding restrictions of various kinds:
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Quadrilateral Parallelogram: a quadrilateral with two pairs of parallel sides. Equivalent conditions are that opposite sides are of equal length; that opposite angles are equal; or that the diagonals bisect each other. Parallelograms also include the square, rectangle, rhombus and rhomboid.
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First Principles 15. A parallelogram is a quadrilateral whose opposite sides are parallel. 16. A circle is a plane figure bounded by one line, called the circumference, such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another. 17. And that point is called the center of the circle.
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- Answer by Chuck Goodman. Confidence votes 21.9K. A parallelogram is a quadrilateral that has two pairs of parallel sides. Some parallelograms, such as squares and rectangles have right angles, but most do not. So the answer is a parallelograms that is not a rectangle (square).
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How can a figure be a rectangle, a rhombus and a square? Parallelograms are quadrilaterals (four-sided shapes) in which both pairs of opposite sides are parallel. For example, a square is a parallelogram, as is a rhombus.
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What is a Trapezoid? (Part 2) They agree that a parallelogram is a quadrilateral with two pairs of parallel sides. A trapezoid has one pair of parallel sides and a parallelogram has two pairs of parallel sides. So a parallelogram is also a trapezoid.
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Is a square a parallelogram? Split and merge into it. Answer by Kyah Boo. Confidence votes 144. Yes, a square is a parallelogram, but we'd call it a special type of parallelogram. A square is also a special type of rectangle, rhombus, and quadrilateral.
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Parallelogram in Geometry: Definition, Shapes & Properties The most recognizable parallelogram is the square; however, a parallelogram can be many shapes: 1  A square is the parallelogram that has four equal sides. The opposite sides are parallel and all corners of the square form a right angle. 2  A rectangle is a parallelogram that has four opposite, parallel, congruent sides.
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- The difference between a parallelogram and a rhombus is that a parallelogram is a quadrilateral whose opposite sides are parallel to one another regardless of how many sides the figure has, and a rhombus is a parallelogram that has four sides with two opposites sides that are equal to one another.
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Is a Square a Rhombus? A rhombus is an equilateral parallelogram, which is a two-dimensional, four-sided figure in which opposite sides are parallel and all sides have equal length. A square fits this definition. However, it is usually considered a special case, and some definitions of a rhombus specify that squares are not included.
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Quadrilateral More About Quadrilateral. 1  Parallelogram: A quadrilateral with two pairs of opposite sides parallel. 2  Rhombus: A parallelogram with four congruent sides. 3  Rectangle: A parallelogram with four right angles. 4  Square: A parallelogram with four congruent sides and four right angles. Rectangle: A parallelogram with four right angles. 2  Square: A parallelogram with four congruent sides and four right angles. 3  Trapezoid: A quadrilateral with only one pair of parallel sides.
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Triangles and Polygons on SAT Math: Strategies and Practice Questions for Geometry A rhombus is a type of parallelogram, and what distinguishes its shape is that all four of its sides are congruent. There are several formulas for the rhombus that have to do with its. 1  Sides. 2  all 4 sides are congruent. 3  Angles. 4  diagonals bisect vertex angles.
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Commencement of Laytime - Davies 1. A rhombus is a parallelogram with four congruent sides. While the definition states parallelogram, it is sufficient to say:  A quadrilateral is a rhombus if and only if it has four congruent sides., since any quadrilateral with four congruent sides is a parallelogram.
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Sheldon Brown'sBicycle Glossary P A parallelogram is a four-sided shape in which the opposite sides  are parallel.   A … rectangle (and a square) is a four-sided shape in which the  opposite sides are parallel and all corners are 90 degrees. The  corners of a parallelogram can be 90 degrees but can also be  different angles. Therefore, rectangles and squares are subsets of  a parallelogram. 25 people found this useful.
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What is a Parallelogram? What is a Parallelogram? A parallelogram is a quadrilateral in which both pairs of opposite sides are parallel. Special relationships exist between the measures of consecutive angles, opposite angles and opposite sides of a parallelogram. A square is the most straightforward parallelogram, because it has 2 sets of parallel sides.
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How many different parallelograms can be made if a pair of adjoining sides must be congruent? A parallelogram is a quadrilateral with both pairs of opposite sides parallel. If both pairs of opposite sides of a quadrilateral are congruent, the quadrilateral is a parallelogram. If both pairs of opposite angles of a quadrilateral are congruent, the quadrilateral is a parallelogram.
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Why is a rectangle a parallelogram, but a parallelogram is not a rectangle? up vote 6 down vote. A rectangle is considered a special case of a parallelogram because: A parallelogram is a quadrilateral with 2 pairs of opposite, equal and parallel sides. A rectangle is a quadrilateral with 2 pairs of opposite, equal and parallel sides BUT ALSO forms right angles between adjacent sides. share | cite | improve this answer. answered Jun 29 '14 at 16:52.
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- A quadrilateral is a parallelogram if: 1  Both pairs of opposite sides are parallel. 2  Both pairs of opposite sides are congruent. 3  One pair of opposite sides are congruent and parallel.
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- A parallelogram has two parallel pairs of opposite sides. A rectangle has two pairs of opposite sides parallel, and four right angles. It is also a parallelogram, since it has two pairs of parallel sides. A square has two pairs of parallel sides, four right angles, and all four sides are equal.It is also a rectangle and a parallelogram. A rhombus is defined as a parallelogram with four equal sides.o, because all four sides of a rectangle don't have to be equal. However, the sets of rectangles and rhombuses do intersect, and their intersection is the set of squaresall squares are both a rectangle and a rhombus. We can put squares in the intersection of the two circles.
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Parallelogram A 4-sided flat shape with straight sides where opposite sides are parallel. Also: • opposite sides are equal in length, and • opposite angles are equal (angles a are the same, and angles b are the same) NOTE: Squares, Rectangles and Rhombuses are all Parallelograms! Try moving any point below:
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Is a parallelogram a irregular polygon? Yes, a parallelogram <b>is</b> an irregular polygon because its sides and angles are not all the same. For a shape to be a regular polygon it must be equangular (all angles are the same) and equilateral (all sides have the same length). Yes, a parallelogram <b>is</b> an irregular polygon because its sides and angles are not all the same.