Question 5:
a) Given: A parallelogram with base = 3.5 units and height = 2 units.
We have to determine the area of the parallelogram.
Area of parallelogram with base 'b' and height 'h' is given by the formula:
.
So, area of parallelogram = 
Area of parallelogram = 
Area = 7 square units.
Therefore, the area of the parallelogram is 7 square units.
b) Given: A parallelogram with base = 3 units and area = 1.8 square units.
We have to determine the height of the parallelogram.
Since, area of parallelogram = 
1.8 square units = 
h =
units
h = 0.6 units
Therefore, the height of the parallelogram is 0.6 units.
c) Given a parallelogram with area = 20.4 square units and height = 4 units
We have to determine the base of the parallelogram.
Area of parallelogram = 

b = 
b = 5.1 units
Therefore, the base of the parallelogram is 5.1 units.