Your dashboard and recommendations. Match. A quadrilateral having both the pairs of opposite sides equal is a parallelogram. I am a polygon with four sides, four angles and four vertices. Home. Last Updated : 19 Jan, 2021; A quadrilateral having both the pairs of opposite sides equal is a parallelogram. What is true about the consecutive angles of a parallelogram? DAC = BCA                   …(i)                  [Alternate Interior Angles]. Opposite sides of a parallelogram are congruent. Rectangle. acknowledge that you have read and understood our, GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Mid Point Theorem - Quadrilaterals | Class 9 Maths, Theorem - The sum of opposite angles of a cyclic quadrilateral is 180° | Class 9 Maths, Theorem - Angle opposite to equal sides of an isosceles triangle are equal | Class 9 Maths, Remainder Theorem - Polynomials | Class 9 Maths, Class 9 NCERT Solutions - Chapter 13 Surface Areas And Volumes - Exercise 13.1, Class 9 RD Sharma Solutions - Chapter 18 Surface Area and Volume of a Cuboid and Cube - Exercise 18.1, Mean, Median, Mode, and Range - Statistics | Class 9 Maths, Circles and its Related Terms | Class 9 Maths, Class 9 NCERT Solutions - Chapter 10 Circles - Exercise 10.1, Class 9 NCERT Solutions - Chapter 13 Surface Areas And Volumes - Exercise 13.3, Class 9 NCERT Solutions - Chapter 4 Linear Equations in two variables - Exercise 4.1, Volumes - Surface Area & Volumes | Class 9 Maths, Class 9 RD Sharma Solutions - Chapter 19 Surface Area And Volume of a Right Circular Cylinder - Exercise 19.1, Class 9 NCERT Solutions - Chapter 3 Coordinate Geometry - Exercise 3.3, Class 9 NCERT Solutions- Chapter 13 Surface Areas And Volumes - Exercise 13.4, Class 9 NCERT Solutions - Chapter 10 Circles - Exercise 10.2, Class 9 NCERT Solutions - Chapter 13 Surface Areas And Volumes - Exercise 13.5, Class 9 NCERT Solutions - Chapter 3 Coordinate Geometry - Exercise 3.2, Class 9 RD Sharma Solutions - Chapter 14 Quadrilaterals- Exercise 14.1, Class 9 NCERT Solutions- Chapter 8 Quadrilaterals - Exercise 8.1, Class 9 RD Sharma Solutions - Chapter 8 Introduction to Lines and Angles- Exercise 8.1, Class 9 NCERT Solutions - Chapter 6 Lines And Angles - Exercise 6.3, Class 9 RD Sharma Solutions - Chapter 13 Linear Equation in Two Variable- Exercise 13.4, Class 9 NCERT Solutions- Chapter 13 Surface Areas And Volumes - Exercise 13.8, Class 9 RD Sharma Solutions - Chapter 9 Triangles and its Angles- Exercise 9.2, Class 9 NCERT Solutions - Chapter 1 Number System - Exercise 1.2, Class 9 RD Sharma Solutions - Chapter 16 Circles - Exercise 16.3, Class 9 RD Sharma Solutions - Chapter 25 Probability - Exercise 25.1 | Set 2, Section formula – Internal and External Division | Coordinate Geometry, Step deviation Method for Finding the Mean with Examples, Theorem - The lengths of tangents drawn from an external point to a circle are equal - Circles | Class 10 Maths, Area of a Triangle - Coordinate Geometry | Class 10 Maths, Difference Between Mean, Median, and Mode with Examples, Write Interview And just as its name suggests, a parallelogram is a figure with two pairs of opposite sides that are parallel. The opposite angles of a parallelogram are congruent. Khan Academy is a 501(c)(3) nonprofit organization. The figure above is of a parallelogram PQRS. Other shapes, however, are types of parallelograms. The length of AB is equal to the length of DC. Basically, there are 6 properties of parallelogram which are important. Now, AB || DC and AD is Intersecting them at A and D respectively. Properties of Parallelograms Explained HTML | DOM Window frameElement Properties, HTML | DOM Window localStorage Properties, HTML | DOM Window defaultStatus Properties. The area formula of a parallelogram. Opposite angels are congruent (D = B). Spell. Displaying top 8 worksheets found for - Properties Of A Parallelogram. TRUE or FALSE: A square is a rectangle. Now,  AB || DC and BD is intersecting B and D respectively. 180 degrees. How to get a subset of a javascript object's properties? Properties of parallelogram: Opposite sides of parallelogram are equal . It is a quadrilateral where both pairs of opposite sides are parallel. AB = BC = CD = DA. Please visit www.doucehouse.com to view more videos like this. BAC = DCA                 …(ii)                      [Alternate Interior Angles], DAC = BCA                    [ From (i) ], AC = AC                                   [ Common Side ], So, by ASA(Angle-Side-Angle) criterion of congurence, AB = CD & DA = BC [ Corresponding part of congurent triangles are equal ]. A parallelogram with sides of equal length is called a rhombus. For example, in the diagram shown below, The best way to learn how to use slopes to classify parallelograms is to review a problem. Below are some simple facts about parallelogram: Below is the representation of a parallelogram: As given ABCD is a parallelogram. The broadest term we've used to describe any kind of shape is "polygon." 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