![]() The diagonals of a parallelogram bisect each other.Ī parallelogram can also become a square when the diagonals are equal and bisect and perpendicular to each other. (2) its consecutive angles are supplementary. (1) its opposite sides are congruent, (2) its opposite angles are congruent, and. If no measurements are given, but you know other characteristics of the parallelogram such as angles or diagonal lengths, you may use geometric and trigonometric principles to solve for the length of BC. Note: The other condition to check for parallelogram is opposite angles are equal which means \and one Note: The more thing we can say that as opposite sides AB and CD are parallel so we can say \. If a quadrilateral is a parallelogram, then. However, if you have information about side AD (or DA), then side BC would have the same length. Quadrilateral: A quadrilateral is a closed figure with four sides and four vertices. ![]() Hence the answer is false or 0, which means it is not a parallelogram Parallelogram: A parallelogram is a quadrilateral with two pairs of parallel sides. Which are not equal, so this given quadrilateral is not a parallelogram. Now as we know that the condition for quadrilateral to be a parallelogram is length of opposite sides should be equal.SO it is clearly visible that opposite sides AB and DC are equal but the other two opposite sides are given as AD=4cm and BC=4.4cm. Now we are given a quadrilateral (a polygon having 4 sides) ABCD with length of sides as given AB=DC=8cm, AD=4cm and BC=4.4cm. What is parallelogram A parallelogram is a quadrilateral whose pair of opposite sides are in parallel and are of equal length. ![]() Prove that if both pairs of opposite sides of a quadrilateral are equal, then the quadrilateral is a parallelogram. (in given figure AB parallel to CD and AD parallel to BC) The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure. Parallelogram is a quadrilateral.Using the SSS (side-side-side) property for congruency and properties of parallelogram ABE and CDE are congruent to each other. Proving a quadrilateral is a parallelogram.
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