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Q: Quadrilateral abcd is a parallelogram is side ab equal to side CD?
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A quadrilateral is a parallelogram if a pair of opposite sides is equal and parallel prove?

A quadrilateral is a parallelogram if one pair of opposite sides are equal and parallel Let ABCD be a quadrilateral in which ABCD and AB=CD, where means parallel to. Construct line AC and create triangles ABC and ADC. Now, in triangles ABC and ADC, AB=CD (given) AC = AC (common side) Angle BAC=Angle ACD (corresponding parts of corresponding triangles or CPCTC) Triangle ABC is congruent to triangle CDA by Side Angle Side Angle BCA =Angle DAC by CPCTC And since these are alternate angles, ADBC. Thus in the quadrilateral ABCD, ABCD and ADBC. We conclude ABCD is a parallelogram. var content_characters_counter = '1032';


Quadrilateral ABCD is a parrallelogram Is side AB equal to side CD?

sometimes


What has 4 side that are not equal?

A quadrilateral. It may be a rectangle, parallelogram, trapezoid, or an irregular quadrilateral.


What quadrilateral had two different pairs of equal length side?

rectangle,square and parallelogram in general.


Is a parallelogram a quadrilateral in which all of its opposite side are parallel?

Yes, sides are equal in length as well.


If each side of a quadrilateral is congruent to its opposite side then the quadrilateral is a parallelogram?

true


How many side lengths does a parallelogram have?

A parallelogram is a 4 sided quadrilateral


What is quadrilateral whose opposite side are parallel?

parallelogram


If each side of a quadrilateral is congruent to its opposite side then the quadrilateral is a rectangle?

No you could have Square, Rectangle, Rhombus, Parallelogram


What is the definition of parallelogram?

A parallelogram can be considered as a slanted rectangle. More precisely, a parallelogram is a quadrilateral where each pair of opposite side is parallel.A parallelogram can be considered as a slanted rectangle. More precisely, a parallelogram is a quadrilateral where each pair of opposite side is parallel.A parallelogram can be considered as a slanted rectangle. More precisely, a parallelogram is a quadrilateral where each pair of opposite side is parallel.A parallelogram can be considered as a slanted rectangle. More precisely, a parallelogram is a quadrilateral where each pair of opposite side is parallel.


Which property must a quadrilateral have to be a parallelogram?

Each side must be parallel to another side.


What is a quadrilateral with two paralell side?

How about a square, rectangle, rhombus or a parallelogram