Theory:

To calculate the area of a parallelogram, multiply the base times '\(b\)' the height '\(h\)'.
 
3-w300.png
 
Area of parallelogram \(A =\) \(b × h\) \(square\) \(units\).
Example:
A parallelogram has a base of \(6 m\) and \(3 m\) height, what is its area?
 
Let the base \(b= 6m\) and the height \(h= 3m\).
 
Area \(A = b × h = 6m × 3m =18m²\).
To calculate the base of the parallelogram, divide area '\(A\)' by height '\(h\)'.
 
Base of parallelogram \(b = A/h\) unit.
Example:
A parallelogram has an area of \(64 m²\) and its height \(4 m\), what is its base?
 
Let the area \(A= 64m²\) and the height \(h= 4m\).
 
Base \(=\) Ah=644=16m.
To calculate the height of the parallelogram, divide area '\(A\)' by base '\(b\)'.
 
Height of parallelogram \(h = A/b\) unit.
Example:
A parallelogram has an area of \(64 m²\) and \(16 m\) base, what is its height?
 
Let the area \(A= 64m²\) and the height \(h= 16m\).
 
Height \(=\) Ab=6416=4m.
 
Where '\(A\)' is denoted as area, '\(b\)' is denoted as the base and '\(h\)' is denoted as the height.
To calculate the perimeter of a parallelogram, multiply \(2\) times the (base \(+\) side length).
 
4-w300.png
 
Perimeter of parallelogram \(P = 2 (b + l)\).
 
Where '\(b\)' is denoted as the base, and '\(l\)' is denoted as the side length.
Example:
A parallelogram has a base of \(5 m\) and \(3 m\) length, what is its perimeter?
 
Here the base \(b= 5m\) and the side length \(l= 3m\).
 
Perimeter \(=2(b + l)\)
 
\(=2(5+3)\)
 
\(=2(8)\)
 
\(=16m\).