1.  The area of a parallelogram if you know sides and angle  

area parallelogram

 

     a , b     -  sides of a parallelogram

    alpha red , beta green     -  angles of a parallelogram

 

 

Formula for calculating Area of a parallelogram if given sides and angle ( A ) :

area parallelogram F1      area parallelogram F2

 

 

2.  The area of a parallelogram if you know side and height

 

area parallelogram height

     a , b     -  sides of a parallelogram

   Ha  - height  measured at right angles to the side  

   Hb  - height  measured at right angles to the side  

 

Formula for calculating Area of a parallelogram if given side and height ( A ) :

area parallelogram height Fa      area parallelogram height Fb

 

 

3.  The area of a parallelogram if you know diagonals and angle between them  

area parallelogram diagonal

 

     DD blue , d blue      -  diagonals of a parallelogram

    alpha red , beta green     -  angles between the diagonals

 

 

Formula for calculating Area of a parallelogram if given diagonals and angle between them ( A ) :

area parallelogram diagonal F1    area parallelogram diagonal F2