Answer:
1. All parallelograms are quadrilaterals
Step-by-step explanation:
A quadrilateral is defined as any 4-sided polygon. Parallelograms are quadrilaterals in which opposite sides are parallel. So any 4-sided polygon such as squares, rectangles, trapezoids, rhombuses, etc., are all quadrilaterals. ... You'll always get a parallelogram!
Hope I helped :)