Q2. (All of the above)Quadriletral means 4 sided. So both a Square and Parallelogram have 4 sides.
Both the square and parallelogram have opposite sides that are equal.
A trapezoid has 4 lines, and only 1 pair is parallel.
Q3. It is a trapezium. If you add up the 2 opposite sides of a Trapezium, it would be equal to 180 degrees. Its top and bottom lines are also parallel to each other.
Q4. I do not agree with the statement. Parallelograms can have different lengths and can still be called a parallelogram. Whereas in the case of squares, they need to have equal lengths for all sides.