Definitions
One side of a parallelogram is 5 inches and another side is 8 inches. What are the lengths of the other two sides?
5 inches and 8 inches
A quadrilateral with 1 pair of parallel sides, 1 pair of equal sides, and no right angles
Trapezium
Can you make a trapezium with all sides the same length?
No, trapezium can have only 1 pair of equal sides.