which of the following quadrilaterals are parallelograms? if the quadrilateral is not a parallelogram, explain why :)
![Which Of The Following Quadrilaterals Are Parallelograms If The Quadrilateral Is Not A Parallelogram Explain Why class=](https://ph-static.z-dn.net/files/d1c/529117933b8b4c9ebd446b6f817929c0.jpg)
Answer:
Parallelogram: 1,2,4,5,6
Not: 3 the reason behind that as the definition implies a parallelogram is a quadrilateral with opposite sides parallel (and therefore opposite angles equal).