Given that
There are two questions and both are related to geometry (parallelogram).
Explanation -
"A quadrilateral is said to be a parallelogram if the opposite sides are equal and parallel."
In question 1.1,
According to the scale of 1cm,
The upper side of the parallelogram is 4 cm and the side opposite to it is 5 cm.
As both, sides are not equal therefore it is not a parallelogram.
In question 2.1
According to the scale of 1cm,
The base of the parallelogram is 5 cm and the height is 3 cm.
Now the area will be
The required area is 15 sq cm.
Final answer - Therefore the final answers are Solution of 1.1 is Because the sides are not equal. Solution of 2.1 is 15 sq cm